Top Quality Phosphor Bronze Casting, Phosphor Bronze Components, Phosphor Bronze parts, Phosphor Bronze Fittings
Phosphor Bronze Products – Premium Castings, Parts & Components
We are one of the leading manufacturers and exporters of Phosphor Bronze castings, parts, and components from India. We have been supplying Phosphor Bronze products to the world market for many decades. Our state-of-the-art manufacturing facility combines traditional craftsmanship with modern technological innovations to produce high-quality Phosphor Bronze solutions that meet the most stringent international standards. The exceptional wear resistance, corrosion resistance, and mechanical properties of Phosphor Bronze make it an ideal material for numerous industrial applications, from marine components to electrical connectors. Our comprehensive production capabilities encompass casting, machining, finishing, and quality control processes, allowing us to deliver complete solutions from raw material to finished components. With our commitment to quality, extensive material knowledge, and focus on customer satisfaction, we have established ourselves as a trusted supplier of Phosphor Bronze products across diverse industries in global markets. Our range of Phosphor Bronze casting, Phosphor Bronze Fittings , Phosphor Bronze machined parts and components is accepted well in the world.
Overview
Phosphor Bronze is a family of Copper-based alloys containing 0.5-11% tin and 0.01-0.35% phosphorus, which acts as a deoxidizing agent during the manufacturing process and contributes to the alloy’s strength and spring qualities. This versatile material offers an excellent combination of properties including high strength, outstanding wear resistance, low friction coefficient, excellent corrosion resistance, good electrical conductivity, and non-sparking characteristics. The addition of phosphorus improves the fluidity of the molten alloy during casting and enhances mechanical properties in the final product. Our Bronze Casting foundry is well equipped to cater to stringent industry needs.
Our comprehensive range of Phosphor Bronze products includes castings, machined parts, and specialized components tailored to meet specific industrial requirements. From simple bushings to complex gear systems, our manufacturing expertise enables us to produce consistent, high-quality Phosphor Bronze solutions for applications in marine, oil and gas, automotive, electrical, and numerous other industries. Each product undergoes rigorous quality control measures to ensure dimensional accuracy, material integrity, and performance reliability. We also offer Aluminium Bronze casting and Silicon Bronze Parts and casting along with our range of Silicon Bronze casting from our Indian foundry.
Material Selection Guide
| Alloy Grade | Copper (%) | Tin (%) | Phosphorus (%) | Lead (%) | Other Elements | Primary Applications |
|---|---|---|---|---|---|---|
| C51000 | 94.5-95.5 | 4.2-5.8 | 0.03-0.35 | – | – | Springs, fasteners, diaphragms |
| C52100 | 91.0-93.0 | 7.0-9.0 | 0.03-0.35 | – | – | Bearings, bushings, gears |
| C52400 | 87.5-89.5 | 10.0-12.0 | 0.03-0.35 | – | – | Heavy-duty bearings, marine components |
| C53400 | 87.0-90.0 | 4.2-5.8 | 0.03-0.35 | 3.5-4.5 | – | Bearings with high load capacity |
| C54400 | 85.0-89.0 | 3.5-4.9 | 0.01-0.35 | 3.5-4.5 | Zn: 1.0-4.0 | Gears, worm wheels, valve components |
| PB102 | 93.0-93.5 | 6.0-6.5 | 0.20-0.40 | – | – | Electrical connectors, marine hardware |
| PB104 | 90.0-92.0 | 7.5-9.0 | 0.10-0.30 | – | – | Bearings, pump components, wear rings |
| Standard | Grade | Description |
|---|---|---|
| ASTM | B103, B139 | Common U.S. casting and forging standards for Phosphor Bronze |
| IS | IS 28, IS 7814 | Indian Standards for cast and wrought Phosphor Bronze |
| BS | BS 1400 PB1, PB2 | British standards for sand and centrifugally cast components |
| DIN | DIN 1705 G-CuSn12 | German standard for cast alloys |
| JIS | JIS H5120 BC6, BC7 | Japanese standards for forged and cast Bronze |
| SAE | SAE 65, SAE 660 | Bearing-grade Bronze for bushings |
| Chinese | ZCuSn10P1, ZCuSn5Pb5Zn5 | GB standards for general engineering use
|
Phosphor Bronze Casting
Phosphor Bronze casting represents the foundation of our manufacturing capabilities, offering an exceptional balance of strength, wear resistance, and corrosion protection for demanding applications. Our casting operations utilize both sand casting and centrifugal casting techniques, each optimized for specific component types and performance requirements. The inherent properties of Phosphor Bronze make it particularly well-suited for casting processes, as its excellent fluidity when molten allows for the reproduction of complex geometries with outstanding detail and surface finish.
Our casting expertise encompasses a wide range of Phosphor Bronze grades, including C51000, C52100, C52400, and C53400, each selected based on the specific requirements of the application. The phosphorus content, typically ranging from 0.01-0.35%, serves as a deoxidizer during the melting process, resulting in castings with minimal porosity and excellent mechanical integrity. This translates to finished components with superior wear characteristics, fatigue resistance, and dimensional stability under varying operating conditions.
The casting process begins with precise material formulation, where raw materials are carefully measured and melted in induction furnaces under controlled atmospheric conditions to prevent oxidation. Advanced simulation software enables us to optimize gating and riser systems, ensuring proper metal flow and minimizing potential defects such as shrinkage or porosity. Post-casting operations include heat treatment to enhance mechanical properties, shot blasting for surface preparation, and comprehensive inspection using radiographic and ultrasonic techniques to verify internal integrity. Our casting capabilities extend from small components weighing a few grams to substantial castings up to 100 kg, with dimensional tolerances maintained within ±0.5% of specified dimensions.
Phosphor Bronze Parts
Phosphor Bronze parts constitute a diverse category of industrial components that leverage the material’s unique combination of properties for applications where friction, wear, and corrosion resistance are paramount concerns. These parts range from standardized components like bushings, washers, and thrust pads to custom-engineered elements designed for specific operational environments. The exceptional anti-friction properties of Phosphor Bronze make these parts ideal for applications involving sliding contact, particularly under conditions of limited or boundary lubrication.
Our manufacturing process for Phosphor Bronze parts involves multiple production pathways, including casting, forging, extrusion, and precision machining, depending on the geometry, dimensional requirements, and performance specifications of the component. For certain applications, we utilize continuous casting techniques to produce near-net-shape forms that minimize subsequent machining operations while maintaining optimal grain structure and mechanical properties. This approach is particularly effective for producing parts with consistent wall thickness and symmetrical cross-sections, such as bearings, bushes, and cylindrical components.
Material selection for Phosphor Bronze parts is guided by application-specific requirements, with alloys like C51000 (5% tin) preferred for parts requiring excellent spring properties and fatigue resistance, while C52100 (8% tin) offers superior wear resistance for bearing applications. For parts exposed to marine environments, we typically recommend C52400 (10% tin) for its enhanced corrosion resistance and mechanical stability. Each part undergoes rigorous dimensional verification using coordinate measuring machines (CMMs) and optical measurement systems, ensuring compliance with specified tolerances typically ranging from ±0.05mm for precision components to ±0.5mm for larger structural elements. Surface finishes are carefully controlled through appropriate machining parameters and post-processing operations, with Ra values as low as 0.4 μm achievable for critical bearing surfaces.
Phosphor Bronze Components
Phosphor Bronze components represent integrated functional units designed to address specific operational requirements across diverse industries. These components frequently combine multiple features and geometries within a single unit, such as bearing housings with integrated lubrication channels, electrical connector assemblies with complex contact arrangements, or marine hardware with specialized sealing features. The inherent properties of Phosphor Bronze—including excellent corrosion resistance in seawater environments, high thermal conductivity, and non-sparking characteristics—make these components indispensable in applications where reliability under challenging conditions is essential.
Our manufacturing approach for complex Phosphor Bronze components incorporates advanced design-for-manufacturing principles that optimize material utilization, minimize production steps, and ensure consistent quality across production batches. Computer-aided design (CAD) and manufacturing (CAM) systems enable us to develop efficient production pathways for even the most complex geometries, while finite element analysis (FEA) allows us to predict component performance under various loading conditions and optimize designs accordingly. This integrated approach ensures that each component not only meets dimensional specifications but also delivers the mechanical performance and operational longevity required for its intended application.
Material selection for specialized components often involves custom Phosphor Bronze formulations tailored to specific performance requirements. For instance, components requiring enhanced electrical conductivity may utilize alloys with lower tin content and carefully controlled phosphorus levels, while those exposed to high mechanical stress might incorporate alloys with higher tin percentages for improved strength and wear resistance. Our metallurgical laboratory facilities enable us to verify material composition and microstructure at multiple stages of the production process, ensuring consistent material properties throughout the component. Finished components undergo comprehensive testing, including dimensional verification, hardness testing, and where applicable, functional testing under simulated operating conditions to validate performance parameters before shipment.
Phosphor Bronze Component Machined Parts
Phosphor Bronze component machined parts represent the pinnacle of precision manufacturing within our product range, featuring complex geometries, tight tolerances, and superior surface finishes achieved through advanced machining technologies. These parts typically serve in critical applications where dimensional accuracy directly impacts functional performance, such as precision bearings, synchronizer rings, valve components, and high-performance gears. The excellent machinability of Phosphor Bronze, combined with its self-lubricating properties and resistance to galling, makes it ideal for components subject to continuous or intermittent dynamic loading.
Our machining capabilities encompass state-of-the-art CNC turning centers, multi-axis milling machines, and precision grinding equipment, enabling us to produce components with tolerances as tight as ±0.01mm and surface finishes below Ra 0.2 μm where required. For high-volume production of standardized parts, we employ automated machining cells with integrated inspection systems that ensure consistent quality while optimizing production efficiency. Custom tooling developed specifically for Phosphor Bronze machining, including specialized geometries and coating technologies, allows us to achieve optimal material removal rates while maintaining superior surface integrity and dimensional stability.
The manufacturing process for precision machined components typically begins with material certification and pre-machining inspection to verify alloy composition and initial stock condition. Primary machining operations establish basic geometries and features, followed by intermediate quality checks to confirm critical dimensions before proceeding to finishing operations. Heat treatment may be incorporated to stabilize material properties and relieve internal stresses, particularly for components with tight geometrical tolerances or those subject to thermal cycling in service. Final machining operations achieve specified dimensions and surface characteristics, followed by comprehensive inspection using precision measurement equipment including coordinate measuring machines, optical comparators, and surface profilometers. This rigorous process ensures that each machined component meets or exceeds specified requirements for dimensional accuracy, geometric tolerances, and surface finish quality.
Phosphor Bronze CNC Machined Parts
We produce precision-CNC machined Phosphor Bronze Component Parts on CNC and VMC machines, ensuring micron-level accuracy. All parts undergo dimensional inspection using CMM tools. Machining includes turning, milling, threading, and slotting with fine tolerances and surface finish control.
Phosphor Bronze Sand Casting
Our Sand Casting facility uses high-grade silica and chromite sand molds to cast parts up to 500 kg. Sand casting is cost-effective for complex geometries and allows flexible batch sizes. Applications include gear blanks, flanges, and marine hardware.
Phosphor Bronze Investment Casting
Investment Casting is used for producing fine-detail parts with thin walls and intricate passages. We use ceramic shells and dewaxing autoclaves to ensure excellent surface finish and dimensional accuracy. Typical parts: defense components, connectors, and instrument housings.
Phosphor Bronze Machined Castings
Castings are machined in-house to reduce delivery time and maintain quality. We provide finish-machined castings with custom threads, bores, and profiles. This reduces scrap, rework, and downstream costs for our clients.
Phosphor Bronze Casting Foundry
Our foundry is equipped with induction furnaces, heat treatment units, and spectrometers for chemical analysis. We follow ISO 9001:2015 practices and conduct 100% visual and dimensional inspections. The foundry also supports prototyping with short lead times.
Manufacturing Processes
Our comprehensive manufacturing capabilities encompass the entire production spectrum for Phosphor Bronze products, from initial casting to precision finishing operations:
🧾 Comprehensive List of Phosphor Bronze Alloys:
| Alloy Name / Grade | Standard | Region | Typical Use | Notes |
|---|---|---|---|---|
| C51000 (UNS) | ASTM B103, B139 | USA | Sheets, wires, springs | CuSn5 (5% Sn, 0.03–0.35% P) |
| C52100 | ASTM B103, B139 | USA | Electrical connectors, springs | CuSn8 |
| C54400 | ASTM B103 | USA | Bushings, thrust washers | CuSn4Zn4Pb2 |
| C51900 | ASTM B103 | USA | Springs, diaphragms | CuSn6 |
| C50700 | ASTM B103 | USA | Gears, electrical terminals | CuSn1.5Pb |
| C51800 | ASTM B103 | USA | Springs, contacts | CuSn6 |
| PB102 | BS EN 12163, BS 2874 | UK | Sheets, strips, wires | CuSn5 |
| PB103 | BS | UK | Rods, forgings | CuSn7Zn2Pb |
| PB104 | BS | UK | Castings, marine | CuSn10Pb5 |
| CuSn5 | DIN 17662 | Germany | General engineering | Equivalent to C51000 |
| CuSn6 | DIN 17662 | Germany | High strength, corrosion resistant | Equivalent to C51900 |
| CuSn8 | DIN 17662 | Germany | Springs, wear parts | Equivalent to C52100 |
| CuSn10P | EN 1982 | Europe | Castings | Common pressure-tight bronze |
| CuSn12 | EN 1982 | Europe | High wear resistance | For bearings, high-load |
| ZCuSn10P1 | GB/T 1176 | China | Castings | Cu-Sn-P casting bronze |
| ZCuSn5Pb5Zn5 | GB/T 1176 | China | Bushings | Tin-lead bronze casting |
| ZCuSn10Pb1 | GB/T 1176 | China | Gears | Tin-lead phosphor bronze |
| C5191 | JIS H3100 | Japan | Sheet, strip | CuSn6 |
| C5212 | JIS H3100 | Japan | High strength | CuSn8 |
| CAC502 | JIS H5120 | Japan | Cast phosphor bronze | CuSn5ZnPb |
| CAC502C | JIS | Japan | High wear, marine fittings | High-tin bronze |
Melting and Casting
The foundation of our Phosphor Bronze production begins with precise material formulation and controlled melting processes:
| Process | Equipment | Capabilities | Typical Applications |
|---|---|---|---|
| Sand Casting | Automated Molding Lines | Complex geometries, sizes up to 100kg | Pump housings, large bearings, marine components |
| Investment Casting | Ceramic Shell Systems | High precision, complex shapes, 0.1kg to 5kg | Precision gears, valve components, intricate parts |
| Centrifugal Casting | Horizontal/Vertical Centrifugal Machines | Tubular components, excellent density, up to 50kg | Bushings, sleeves, bearing rings |
| Continuous Casting | Horizontal Continuous Casters | Bars, tubes, profiles with consistent properties | Rod stock for machining, bearing materials |
| Die Casting | Cold Chamber Machines | High volume production, thin walls | Small electrical components, connector parts |
Our melting operations utilize induction furnaces operating under protective atmospheres, with capacities ranging from 50kg for specialized alloys to 500kg for standard compositions. Advanced spectrographic analysis ensures precise chemical composition control, with real-time adjustments made during the melting process to maintain optimal alloy properties.
Heat Treatment
| Process | Temperature Range | Duration | Purpose |
|---|---|---|---|
| Solution Annealing | 650-750°C | 1-2 hours | Homogenization of structure, stress relief |
| Stress Relief | 250-350°C | 2-4 hours | Dimensional stability, internal stress reduction |
| Age Hardening | 300-400°C | 1-3 hours | Precipitation hardening for improved strength |
| Cryogenic Treatment | -190°C | 24-48 hours | Enhanced wear resistance, stability |
Heat treatment processes are conducted in computer-controlled furnaces with temperature uniformity of ±5°C, ensuring consistent material properties throughout the component volume.
Machining Operations
Our precision machining capabilities for Phosphor Bronze include:
| Process | Equipment | Tolerances | Surface Finish |
|---|---|---|---|
| CNC Turning | DMG MORI NLX Series | ±0.01mm | Ra 0.4-3.2 μm |
| CNC Milling | Haas VF Series | ±0.02mm | Ra 0.8-3.2 μm |
| CNC Grinding | Studer S33 | ±0.005mm | Ra 0.1-0.8 μm |
| Wire EDM | Makino U6 | ±0.01mm | Ra 0.5-1.6 μm |
| Honing | Sunnen MBB-1660 | ±0.005mm | Ra 0.1-0.4 μm |
| Lapping | Hyprez L20 | ±0.002mm | Ra 0.05-0.2 μm |
Our machining facilities are maintained in climate-controlled environments to ensure dimensional stability during precision operations, with automated tool monitoring systems to maintain consistent cutting parameters and surface quality.
Surface Finishing
| Finish Type | Process | Appearance | Purpose |
|---|---|---|---|
| Mechanical Polishing | Automated Polishing Lines | Mirror-like, Ra 0.05-0.2 μm | Improved appearance, reduced friction |
| Bead Blasting | Glass Bead Systems | Uniform matte finish | Enhanced adhesion for coatings, aesthetic |
| Passivation | Chemical Treatment | No visual change | Enhanced corrosion resistance |
| Electroplating | Various (Ni, Cr, Au) | Bright or satin | Corrosion protection, electrical properties |
| Chemical Coloring | Chemical Treatment | Brown to black | Decorative, identification |
Machinery Used
Our production facilities feature advanced machinery specifically selected and optimized for Phosphor Bronze manufacturing:
| Equipment Category | Manufacturer/Model | Specifications | Primary Applications |
|---|---|---|---|
| Induction Melting Furnaces | Inductotherm VIP | 50-500kg capacity, 1400°C max | Alloy melting and formulation |
| Sand Molding Lines | DISA MATCH 20/24 | 100 molds/hour, 500x400x200mm | Complex castings production |
| Centrifugal Casting Machines | Rollwasch RCM 500 | Horizontal and vertical, up to 500mm diameter | Bushings, sleeves, rings |
| CNC Turning Centers | DMG MORI NLX 2500 | 12 tools, 4-axis, 0.001mm resolution | Precision cylindrical components |
| CNC Machining Centers | Haas VF-3 | 4-axis, 24 tools, 12,000 RPM | Complex geometrical components |
| CNC Grinding Machines | Studer S33 | Internal/external, 0.0001mm resolution | High-precision bearing surfaces |
| Coordinate Measuring Machines | Zeiss CONTURA | 900x1200x800mm, 0.001mm accuracy | Dimensional verification |
| Spectrometers | Bruker Q4 TASMAN | Full elemental analysis | Material composition verification |
| Heat Treatment Furnaces | Nabertherm N 41/H | 1100°C max, ±3°C uniformity | Solution annealing, stress relief |
| Surface Finish Testers | Mitutoyo SJ-410 | 0.01μm resolution | Surface quality verification |
| Hardness Testers | Wilson VH3300 | Micro/macro hardness, automatic | Material property verification |
| Ultrasonic Testing Equipment | GE Inspection USM36 | 0.5-20MHz, digital | Internal defect detection |
Our equipment is maintained under comprehensive preventive maintenance programs and regularly calibrated to ensure optimal performance and precision. Operator training programs ensure that our technical staff maintains the expertise needed to fully utilize the capabilities of our advanced machinery.
Typical Parts Produced
Our Phosphor Bronze manufacturing capabilities encompass a diverse range of components serving various industries:
| Component Category | Examples | Critical Properties | Primary Industries |
|---|---|---|---|
| Bearings and Bushings | Plain bearings, flanged bushings, thrust washers | Wear resistance, low friction | Automotive, industrial machinery, marine |
| Electrical Components | Connectors, terminals, contact springs | Electrical conductivity, spring properties | Electronics, power distribution, telecommunications |
| Marine Hardware | Propeller components, rudder bearings, seawater valves | Corrosion resistance, strength | Shipbuilding, offshore platforms, port equipment |
| Gears and Power Transmission | Worm wheels, gear blanks, synchronizer rings | Wear resistance, load capacity | Industrial machinery, automotive, material handling |
| Pump and Valve Components | Valve seats, pump impellers, wear rings | Erosion resistance, dimensional stability | Oil and gas, chemical processing, water management |
| Instrument Components | Pressure sensors, measuring devices, gauge frames | Dimensional stability, non-magnetic | Scientific instruments, aerospace, medical devices |
| Specialty Components | Musical instrument parts, heritage restoration components | Specific acoustic properties, historical authenticity | Musical instruments, architectural restoration |
Component Dimensional Range
| Dimension | Minimum | Maximum | Typical Tolerance |
|---|---|---|---|
| Outside Diameter | 3mm | 650mm | ±0.05 to ±0.5mm |
| Inside Diameter | 1mm | 600mm | ±0.02 to ±0.2mm |
| Length/Height | 2mm | 1500mm | ±0.1 to ±1.0mm |
| Wall Thickness | 0.5mm | 100mm | ±0.05 to ±0.5mm |
| Weight | 5g | 100kg | ±2% |
Typical Dimensions for Flanged Bushings:
| Size Code | Bore Diameter (mm) | Outside Diameter (mm) | Flange Diameter (mm) | Length (mm) | Flange Thickness (mm) |
|---|---|---|---|---|---|
| FB-2020 | 20 | 25 | 35 | 20 | 2.5 |
| FB-2530 | 25 | 32 | 45 | 30 | 3.0 |
| FB-3040 | 30 | 38 | 50 | 40 | 4.0 |
| FB-4050 | 40 | 50 | 65 | 50 | 5.0 |
| FB-5060 | 50 | 62 | 80 | 60 | 6.0 |
| FB-6070 | 60 | 75 | 95 | 70 | 7.0 |
| FB-8080 | 80 | 98 | 120 | 80 | 8.0 |
| FB-100100 | 100 | 120 | 150 | 100 | 10.0 |
Custom dimensions available upon request.
Industries and Applications
Phosphor Bronze components serve critical functions across diverse industrial sectors:
Marine and Offshore
Phosphor Bronze stands as the material of choice for marine applications due to its exceptional resistance to seawater corrosion and biofouling. Our components serve in critical applications including propeller systems, rudder bearings, pump components, and seawater valves where continuous exposure to harsh marine environments demands uncompromising material performance. The alloy’s combination of strength, corrosion resistance, and low friction properties ensures reliable operation even in the most challenging offshore conditions. Typical applications include propeller blade bearings, stern tube bushings, rudder stock bearings, and marine pump wear rings where material failure can lead to substantial operational disruptions.
Electrical and Electronics
The excellent electrical conductivity and spring properties of Phosphor Bronze make it ideal for electrical contacts, connectors, and terminal components that require reliable performance over thousands of connection cycles. With electrical conductivity typically ranging from 15% to 48% IACS (International Annealed Copper Standard) depending on alloy composition, Phosphor Bronze provides an optimal balance between electrical performance and mechanical durability. Our components serve in power distribution systems, telecommunications equipment, industrial controls, and consumer electronics where connection reliability directly impacts system performance and longevity. Specific applications include terminal pins, contact springs, EMI shielding components, and switch elements.
Automotive and Transportation
Automotive applications leverage the wear resistance and fatigue strength of Phosphor Bronze in synchronizer rings, thrust washers, valve guides, and transmission components where material performance directly affects vehicle reliability and service intervals. The material’s self-lubricating properties are particularly valuable in applications with boundary lubrication conditions or where lubricant contamination is a concern. Our components contribute to improved fuel efficiency through reduced friction, extended service life through superior wear resistance, and enhanced operational reliability through consistent performance under varying temperature and load conditions. Typical applications include transmission thrust washers, synchronizer blocker rings, valve guides, and steering system bearings.
Oil and Gas
The oil and gas industry relies on Phosphor Bronze components for applications requiring exceptional corrosion resistance combined with high mechanical strength under elevated temperatures and pressures. From offshore platforms to refinery equipment, our components serve in critical systems including valve seats, pump bushings, and wear rings exposed to aggressive fluids and demanding operating conditions. The material’s resistance to hydrogen sulfide (H₂S) and carbon dioxide (CO₂) corrosion makes it particularly valuable in sour service environments where material integrity is paramount to operational safety and environmental protection. Specific applications include pump wear rings, valve trim components, and instrumentation elements.
Industrial Machinery
Manufacturing and processing equipment benefits from Phosphor Bronze components in applications involving continuous operation, high loads, and challenging lubrication conditions. Components such as plain bearings, guide bushings, and wear plates provide reliable performance in equipment ranging from textile machinery to heavy industrial presses. The material’s dimensional stability under varying temperatures and loads ensures consistent operation and dimensional control in precision machinery, while its wear resistance extends service intervals and reduces maintenance requirements. Typical applications include hydraulic cylinder bushings, slide plates, spindle bearings, and guide components in forming and processing equipment.
Material Properties and Performance
Phosphor Bronze offers exceptional mechanical and physical properties that make it ideal for demanding applications:
Mechanical Properties
| Alloy Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) | Fatigue Strength (MPa) |
|---|---|---|---|---|---|
| C51000 | 380-550 | 250-450 | 20-45 | 80-130 | 190-260 |
| C52100 | 450-650 | 300-550 | 15-35 | 100-150 | 210-300 |
| C52400 | 550-750 | 380-650 | 10-25 | 120-180 | 230-340 |
| C53400 | 400-550 | 280-450 | 15-30 | 90-140 | 200-270 |
| C54400 | 380-520 | 260-420 | 18-35 | 85-135 | 190-250 |
Physical Properties
| Property | Value Range | Influencing Factors |
|---|---|---|
| Density | 8.8-8.9 g/cm³ | Tin content, porosity |
| Melting Range | 870-1000°C | Alloy composition |
| Thermal Conductivity | 50-75 W/m·K | Tin content, phosphorus level |
| Electrical Conductivity | 15-48% IACS | Tin and phosphorus content |
| Thermal Expansion | 17-19 × 10⁻⁶/°C | Alloy composition |
| Young’s Modulus | 100-120 GPa | Microstructure, heat treatment |
| Poisson’s Ratio | 0.33-0.35 | – |
Material Performance Characteristics
| Performance Attribute | Rating | Notes |
|---|---|---|
| Corrosion Resistance (Seawater) | Excellent | Superior to many bronze types, minimal dezincification |
| Wear Resistance | Very Good | Excellent for sliding applications, self-lubricating properties |
| Machinability | Good | 70-80% compared to free-cutting Brass |
| Casting Fluidity | Good to Excellent | Enhanced by phosphorus content |
| Weldability | Fair to Good | Requires proper procedures and filler materials |
| Solderability | Excellent | Forms strong, reliable joints |
| Fatigue Resistance | Very Good | Superior to standard Copper alloys |
| Hot Workability | Good | Temperature range 650-760°C |
| Cold Workability | Fair to Good | Dependent on tin content |
International Standards
Our Phosphor Bronze products comply with multiple international standards:
Material Standards
| Standard | Description | Corresponding Grades |
|---|---|---|
| ASTM B139/B139M | Standard Specification for Phosphor Bronze Rod, Bar, and Shapes | C51000, C52100, C52400, C53400, C54400 |
| ASTM B505/B505M | Standard Specification for Copper-Base Alloy Continuous Castings | C51000, C52100, C52400 |
| ASTM B584 | Standard Specification for Copper Alloy Sand Castings | C90700, C90800, C91100, C91300, C91600, C91700 |
| EN 1982 | Copper and Copper Alloys – Ingots and Castings | CuSn5Pb5Zn5, CuSn10, CuSn12 |
| BS 1400 | Copper Alloy Ingots and Copper Alloy and High Conductivity Copper Castings | PB1, PB2, PB102, PB104 |
| IS 28 | Phosphor Bronze Ingots and Castings | PB1, PB2 |
| JIS H5120 | Copper Alloy Castings | CAC502, CAC503, CAC505 |
| DIN 1705 | Copper-Tin Casting Alloys | GCuSn10Zn, GCuSn12, GCuSn5ZnPb |
| GB/T 5231 | Copper and Copper Alloy Castings | QSn4-4-4, QSn10-1, QSn6.5-0.1 |
Performance and Testing Standards
| Standard | Description | Application |
|---|---|---|
| ASTM E8/E8M | Standard Test Methods for Tension Testing of Metallic Materials | Mechanical property verification |
| ASTM E10 | Standard Test Method for Brinell Hardness of Metallic Materials | Hardness testing |
| ASTM B148 | Standard Specification for Aluminum-Bronze Sand Castings | Comparative performance standard |
| ASTM B271/B271M | Standard Specification for Copper-Base Alloy Centrifugal Castings | Manufacturing process standard |
| ISO 4383 | Plain Bearings – Copper Alloy Multilayer Materials for Thin-Walled Plain Bearings | Bearing performance requirements |
| ISO 6506 | Metallic Materials – Brinell Hardness Test | Material testing methodology |
| ISO 9001:2015 | Quality Management Systems – Requirements | Overall production quality system |
Manufacturing Tolerances
Our manufacturing processes maintain tight tolerances across all production methods:
| Process | Dimension | Standard Tolerance | Precision Tolerance | Notes |
|---|---|---|---|---|
| Sand Casting | Linear | ±0.5% min. ±1.0mm | ±0.3% min. ±0.8mm | Depends on dimension and complexity |
| Flatness | 0.5mm/100mm | 0.3mm/100mm | Measured across casting surfaces | |
| Wall Thickness | ±10% min. ±1.0mm | ±7% min. ±0.8mm | Minimum wall thickness 3mm | |
| Centrifugal Casting | Inner Diameter | ±0.5% min. ±0.8mm | ±0.3% min. ±0.5mm | Improves with larger diameters |
| Outer Diameter | ±0.3% min. ±0.5mm | ±0.2% min. ±0.3mm | More precise than inner dimensions | |
| Wall Thickness | ±5% min. ±0.5mm | ±3% min. ±0.3mm | Minimum wall thickness 2mm | |
| Investment Casting | Linear | ±0.3% min. ±0.5mm | ±0.2% min. ±0.3mm | Superior for small, complex parts |
| Surface Roughness | Ra 3.2-6.3 μm | Ra 1.6-3.2 μm | As-cast condition | |
| CNC Machining | Linear | ±0.02mm | ±0.01mm | Standard machining capabilities |
| Diameters | ±0.02mm | ±0.01mm | For turned components | |
| Surface Roughness | Ra 0.8-3.2 μm | Ra 0.2-0.8 μm | Dependent on machining parameters | |
| Precision Grinding | Linear | ±0.005mm | ±0.002mm | For critical dimensions |
| Diameters | ±0.005mm | ±0.002mm | For bearing surfaces | |
| Surface Roughness | Ra 0.2-0.8 μm | Ra 0.05-0.2 μm | For bearing and sealing surfaces |
These tolerances represent general capabilities and may vary based on specific component geometry, size, and complexity. Customized tolerance specifications can be established for specific applications based on functional requirements.
Turnaround Time
Our standard production lead times are structured to provide reliable delivery while ensuring comprehensive quality control:
| Product Category | Standard Lead Time | Expedited Service | Factors Affecting Timeline |
|---|---|---|---|
| Standard Catalog Items | 2-3 weeks | 1-2 weeks (+20%) | Material availability, current production load |
| Custom Castings | 4-6 weeks | 3-4 weeks (+25%) | Design complexity, pattern fabrication, quantity |
| Machined Components | 3-5 weeks | 2-3 weeks (+20%) | Complexity, material availability, quantity |
| Precision Components | 5-7 weeks | 4-5 weeks (+30%) | Tolerances, inspection requirements, heat treatment |
| Prototype Development | 2-3 weeks | 1-2 weeks (+35%) | Design refinement, engineering review |
The production timeline typically includes:
- Initial review and engineering analysis: 2-5 business days
- Material procurement (if non-standard): 5-10 business days
- Pattern/tooling production (for new designs): 1-3 weeks
- Casting and initial processing: 1-2 weeks
- Machining and finishing operations: 1-3 weeks
- Final inspection and certification: 2-5 business days
- Packaging and shipping preparation: 2-3 business days
For projects requiring expedited processing, we offer premium services that can reduce lead times by 20-30% depending on product complexity and current production scheduling. Our project management team provides detailed timeline projections during the quotation process and maintains regular communication regarding production status throughout the manufacturing cycle.
Why Choose Us?
- 30+ years of global export experience
- Custom development support with reverse engineering
- Quick turnaround time and flexible production schedules
- In-house tooling, machining, and inspection facilities
- Dedicated customer support and account management
- Customized labeling and packaging as per buyer’s needs
Packaging and Shipping
- Bubble wrap, VCI packaging, and corrugated boxes
- Export-worthy wooden crates for sea shipment
- Palletized loads for air/road
- Customer logo/labels on demand
Customer Testimonial
“We’ve worked with this Indian team for over 5 years for our Phosphor Bronze valve parts. Their delivery, support, and product consistency have been outstanding.”
— James Carter, Houston, USA
Typical Q&A
Q1: What standards do your Phosphor Bronze castings meet?
A: ASTM B103, BS1400, DIN 1705, IS 28, JIS BC6 and more.
Q2: Do you offer sample castings?
A: Yes, sample runs are available within 2–3 weeks.
Q3: What is the minimum order quantity?
A: As low as 20 kg for repeat customers.
Q4: Can I get Phosphor Bronze parts with my company logo engraved?
A: Yes, we offer engraving and labeling.
Q5: What certifications do you provide for Phosphor Bronze castings and CNC machined parts?
A: Material Test Certificates, Dimensional Reports, and Custom QC Documents.
Q6: Are your materials RoHS compliant?
A: Yes, all our alloys are RoHS and REACH compliant.
Q7: Do you offer urgent delivery for Phosphor Bronze parts and castings?
A: Yes, express manufacturing options available.
Q8: Can you develop from a sample?
A: Yes, using 3D scanning and reverse engineering.
Q9: What kind of packaging options are available?
A: Wooden crates, vacuum packaging, and labeled cartons.
Q10: What are your inspection methods?
A: Visual, dimensional, CMM, pressure test, and MPI as needed.
Glossary of Terms
- Phosphor Bronze Casting: Alloy castings made from Copper-Tin-Phosphorus blend.
- Machined Bronze Component: A cast item further refined using CNC or VMC.
- Sand Casting: A process that uses sand molds.
- Investment Casting: Uses wax patterns and ceramic shells.
- BHN: Brinell Hardness Number, indicating material hardness.
Related Terms
Phosphor Bronze Bushings, PB1 Bronze Casting, PB2 Bronze Bush, Copper Tin Phosphor Alloy Parts, Marine Grade Bronze, High Conductivity Bronze Castings, Non-Sparking Bronze Alloy
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