Bronze Elbows & Bronze Threaded Elbows

Price: US$ 11.90/kilogram

Overview of Bronze Elbows and Bronze Threaded Elbows

Bronze Elbows are essential pipe fittings manufactured from high-quality Bronze alloys, designed to change the direction of piping systems at various angles, typically 45°, 90°, and 180°. These fittings are renowned for their exceptional corrosion resistance, durability, and superior mechanical properties, making them ideal for marine environments, potable water systems, and industrial applications where reliability is paramount. The unique composition of Bronze, primarily consisting of Copper and Tin, provides excellent resistance to dezincification, stress corrosion cracking, and marine fouling, ensuring long-term performance in demanding environments.

Bronze Threaded Elbows feature precision-machined internal or external threads that comply with NPT (National Pipe Thread), BSP (British Standard Pipe), or metric threading standards. These threaded connections provide secure, leak-proof joints that can withstand high pressures and temperatures while maintaining dimensional stability. The threading process involves specialized machinery and quality control measures to ensure perfect thread pitch, depth, and surface finish, guaranteeing optimal sealing performance and ease of installation.

Bronze Elbows – Standard and Custom Manufacturing

Bronze Elbows are manufactured using premium quality Bronze alloys including Naval Brass (Cu-Zn-Sn), Phosphor Bronze (Cu-Sn-P), and Aluminum Bronze (Cu-Al-Ni-Fe) compositions. Our manufacturing process begins with careful material selection and chemical composition verification to ensure compliance with international standards. The production involves sand casting, investment casting, or forging processes depending on the size, complexity, and quantity requirements. Each Bronze Elbow undergoes rigorous dimensional inspection, pressure testing, and surface finish verification to meet customer specifications and industry standards.

Our Bronze Elbow manufacturing capabilities include sizes ranging from 1/8″ to 12″ in various wall thicknesses and pressure ratings. We offer both standard configurations and custom-designed Bronze Elbows with special angles, reinforced construction, or unique end connections. The manufacturing process incorporates advanced metallurgical techniques including controlled cooling, stress relief annealing, and precision machining to achieve optimal mechanical properties and dimensional accuracy.

Bronze Threaded Elbows – Precision Threading Solutions

Bronze Threaded Elbows are engineered with precision-cut threads that ensure perfect mating with corresponding threaded components. Our threading operations utilize CNC lathes and specialized threading machines capable of producing NPT, BSP, BSPT, and metric thread configurations with exceptional accuracy. The threading process includes thread cutting, deburring, and inspection using thread gauges and optical measurement systems to verify thread quality and dimensional compliance.

These Bronze Threaded Elbows are available in various configurations including male-female, female-female, and male-male thread combinations. Our manufacturing capabilities extend to producing threaded elbows with different thread sizes on each end, allowing for easy system integration and pipe size transitions. The threaded connections are designed to provide gas-tight and liquid-tight seals when properly assembled with appropriate thread sealants or PTFE tape.

Bronze Cast Elbows – Superior Casting Technology

Bronze Cast Elbows are produced using advanced casting techniques including sand casting, permanent mold casting, and investment casting processes. Our foundry operations utilize high-frequency induction furnaces for precise temperature control and alloy composition management. The casting process involves pattern making, mold preparation, metal pouring, solidification control, and finishing operations to achieve the desired shape, dimensions, and surface quality.

Our Bronze Cast Elbows demonstrate superior structural integrity and uniform material properties throughout the casting. The controlled solidification process eliminates internal defects such as porosity, inclusions, and segregation, ensuring consistent mechanical properties and pressure-bearing capabilities. Post-casting operations include heat treatment, machining, and surface finishing to meet specific customer requirements and application standards.

Gunmetal Elbows – Heavy-Duty Applications

Gunmetal Elbows are manufactured from high-strength Gunmetal alloy (Cu-Sn-Zn-Pb) specifically formulated for heavy-duty marine and industrial applications. This specialized Bronze alloy offers exceptional resistance to saltwater corrosion, biofouling, and cavitation damage, making it ideal for shipbuilding, offshore platforms, and coastal installations. The unique composition of Gunmetal provides superior machinability while maintaining excellent mechanical properties and dimensional stability.

Our Gunmetal Elbows are precision-manufactured to meet stringent marine industry standards and certifications. The manufacturing process includes chemical composition verification, mechanical testing, and corrosion resistance evaluation to ensure compliance with maritime regulations and classification society requirements. These elbows are available in various configurations including flanged, threaded, and socket weld ends to accommodate different piping system requirements.

NPT Threaded Bronze Elbows – American Standard Threading

NPT Threaded Bronze Elbows are manufactured with National Pipe Thread (NPT) specifications according to ASME B1.20.1 standards. The NPT thread design features a tapered profile that creates a metal-to-metal seal when properly assembled, eliminating the need for additional sealing compounds in many applications. Our NPT threading operations utilize precision threading equipment and continuous monitoring systems to ensure consistent thread quality and dimensional accuracy.

These NPT Threaded Bronze Elbows are widely used in North American markets and applications requiring compliance with ASME and ANSI standards. The threading process includes careful attention to thread pitch, taper angle, and surface finish to ensure optimal sealing performance and ease of assembly. Our quality control procedures include thread gauge verification, go-no-go testing, and leak testing to guarantee thread integrity and sealing capability.

Bronze Elbow Fittings – Comprehensive Solution Portfolio

Bronze Elbow Fittings encompass our complete range of directional change fittings designed for diverse industrial and commercial applications. This comprehensive portfolio includes reducing elbows, street elbows, long radius elbows, and specialized configurations for specific industry requirements. Our engineering team works closely with customers to develop custom Bronze Elbow Fittings that meet unique application challenges and performance specifications.

Our Bronze Elbow Fittings are manufactured using advanced production techniques including CNC machining, precision casting, and specialized forming processes. Each fitting undergoes comprehensive testing including dimensional verification, pressure testing, and material property evaluation to ensure compliance with customer specifications and industry standards. We offer various end connection options including threaded, socket weld, butt weld, and flanged configurations to accommodate different piping system requirements.

Material Grades and International Standards

Manufacturing Processes and Advanced Machinery

Our manufacturing facility is equipped with state-of-the-art machinery including CNC turning centers, multi-axis machining centers, and automated production lines. The manufacturing process for Bronze Elbows and Bronze Threaded Elbows involves several critical stages including material preparation, forming or casting, machining, threading, surface treatment, and quality inspection. Each stage is carefully controlled and monitored to ensure consistent product quality and dimensional accuracy.

Dimensional Specifications and Size Chart

Material Properties and Performance Characteristics

Industries and Applications

Bronze Elbows and Bronze Threaded Elbows serve critical functions across diverse industries including marine and offshore engineering, where their superior corrosion resistance and mechanical properties make them ideal for seawater systems, ballast systems, and deck machinery. In the oil and gas industry, these fittings are essential for offshore platforms, refineries, and petrochemical plants where reliability and durability are paramount. The chemical processing industry relies on Bronze Elbow Fittings for their resistance to various corrosive media and ability to maintain integrity under extreme conditions.

Water treatment facilities utilize Bronze Threaded Elbows for potable water systems, desalination plants, and wastewater treatment applications due to their non-toxic properties and resistance to biological growth. The HVAC industry depends on Bronze Elbow Fittings for heating and cooling systems, particularly in commercial and industrial installations where long-term reliability is essential. Power generation facilities use these fittings in cooling water systems, steam condensate systems, and various auxiliary systems where corrosion resistance and thermal stability are crucial.

Quality Standards and Tolerances

Our Bronze Elbows and Bronze Threaded Elbows are manufactured to comply with international quality standards including ASTM, ASME, BS, DIN, JIS, and IS specifications. Dimensional tolerances are maintained within ±0.1mm for critical dimensions, while thread specifications conform to ASME B1.20.1 for NPT threads and BS 21 for BSP threads. Surface finish requirements are maintained at Ra 3.2 µm or better for threaded surfaces and Ra 6.3 µm for casting surfaces.

Turnaround Time and Production Capacity

Our standard production turnaround time for Bronze Elbows and Bronze Threaded Elbows is 4-6 weeks from order confirmation, depending on quantity, specifications, and customization requirements. We maintain strategic inventory levels for common sizes and configurations to support expedited delivery when required. Our production capacity includes the ability to manufacture up to 50,000 pieces monthly across various sizes and configurations, with flexible production scheduling to accommodate customer requirements.

For urgent orders and critical applications, we offer expedited production services with reduced lead times of 2-3 weeks. Our efficient supply chain management and strategic partnerships with raw material suppliers ensure consistent material availability and production continuity. We provide regular production updates and progress reports to keep customers informed throughout the manufacturing process.

Frequently Asked Questions

Q: What is the difference between Bronze Elbows and Bronze Threaded Elbows?
A: Bronze Elbows refer to the general category of directional change fittings, while Bronze Threaded Elbows specifically feature internal or external threads for threaded connections. Both serve the same basic function of changing pipe direction but differ in their connection methods.

Q: Which Bronze alloy is best for marine applications?
A: Naval Brass (Cu-Zn-Sn) and Gunmetal (Cu-Sn-Zn-Pb) are excellent choices for marine applications due to their superior resistance to seawater corrosion, biofouling, and dezincification.

Q: Can you manufacture Bronze Elbows with custom thread specifications?
A: Yes, we can manufacture Bronze Threaded Elbows with custom thread specifications including metric threads, ACME threads, and special pitch requirements to meet specific application needs.

Q: What is the maximum working pressure for your Bronze Elbows?
A: Our Bronze Elbows are typically rated for working pressures up to 150 PSI (10.3 bar) for standard configurations, with higher pressure ratings available for reinforced designs and specific applications.

Q: Do you provide material certificates for your Bronze Elbow Fittings?
A: Yes, we provide comprehensive material certificates including chemical composition analysis, mechanical property test results, and compliance certificates for all international standards.

Q: What surface finishes are available for Bronze Threaded Elbows?
A: We offer various surface finishes including natural Bronze finish, polished finish, brushed finish, and special coatings such as nickel plating or protective lacquers as per customer requirements.

Q: Can you supply Bronze Elbows with different thread sizes on each end?
A: Yes, we manufacture reducing Bronze Threaded Elbows with different thread sizes on each end to facilitate pipe size transitions and system integration.

Q: What is the temperature range for Bronze Elbow Fittings?
A: Our Bronze Elbow Fittings are suitable for operating temperatures ranging from -40°C to +200°C (-40°F to +392°F), depending on the specific alloy composition and application requirements.

Q: Do you offer expedited production for urgent orders?
A: Yes, we provide expedited production services with reduced lead times of 2-3 weeks for urgent orders, subject to availability and production capacity.

Q: What packaging options are available for export shipments?
A: We offer customized packaging solutions including wooden boxes, cardboard cartons, plastic bags, and protective wrapping, with options for customer branding and special labeling for export requirements.

Packaging and Shipping Solutions

Our comprehensive packaging solutions for Bronze Elbows and Bronze Threaded Elbows are designed to ensure safe transportation and easy handling during international shipping. We utilize multi-layer packaging systems including individual plastic bags, foam padding, cardboard separators, and moisture-resistant barriers to prevent damage during transit. Our export packaging complies with international shipping regulations and includes proper labeling, documentation, and marking as per customer requirements.

We offer customized packaging options including customer branding, special labeling with part numbers and specifications, and protective packaging tailored to specific shipping methods. Our packaging team works closely with logistics partners to optimize packaging efficiency while maintaining product protection. We provide detailed packing lists, shipping documentation, and tracking information to ensure smooth delivery to global destinations.

Performance Metrics and Testing Procedures

Our Bronze Elbows and Bronze Threaded Elbows undergo comprehensive testing procedures to ensure optimal performance and reliability. Pressure testing is conducted at 1.5 times the working pressure to verify structural integrity and leak-tightness. Dimensional inspection using coordinate measuring machines (CMM) ensures compliance with specified tolerances. Chemical composition analysis using optical emission spectroscopy (OES) verifies alloy compliance with international standards.

Mechanical testing includes tensile testing, hardness testing, and impact testing to evaluate material properties. Corrosion resistance testing is performed using salt spray testing, cyclic corrosion testing, and electrochemical testing methods. Thread testing involves go-no-go gauge verification, thread pitch measurement, and engagement testing to ensure proper thread quality and functionality.

International Certifications and Compliance

Our Bronze Elbows and Bronze Threaded Elbows are manufactured in compliance with major international standards including ASTM B584 for Bronze castings, ASME B16.15 for cast Bronze threaded fittings, BS 864 for capillary and compression fittings, DIN 2950 for Bronze fittings, and JIS H5120 for Bronze castings. We maintain ISO 9001:2015 certification for quality management systems and ISO 14001:2015 for environmental management.

Our products carry various certifications including CE marking for European markets, WRAS approval for potable water applications, and ABS/DNV-GL certification for marine applications. We provide comprehensive documentation including material certificates, test reports, and compliance declarations to support customer requirements and regulatory compliance.

Research and Development

Our dedicated research and development team continuously works on improving Bronze Elbow Fittings performance through advanced metallurgy, innovative manufacturing techniques, and application-specific customization. We collaborate with leading technical institutions and industry partners to develop new alloy compositions, surface treatments, and manufacturing processes that enhance product performance and customer value.

Current R&D initiatives include development of eco-friendly Bronze alloys with reduced environmental impact, advanced surface treatments for enhanced corrosion resistance, and smart manufacturing technologies for improved production efficiency and quality control. We invest significantly in research infrastructure and maintain state-of-the-art testing facilities to support product development and quality assurance.