Stainless Steel Weld Nipples, Welding Hose Nipples & Stainless Steel Threaded Pipe Nipples
Overview We are one of the leading manufacturers and exporters of Stainless Steel Weld Nipples, Stainless Steel Welding Hose Nipples, and Stainless Steel Threaded Pipe Nipples from India. We have been supplying these high-quality pipe fittings to the world market for many decades. Our nipples are precisely engineered for high pressure, durability, and corrosion resistance, making them ideal for a wide range of industrial applications including fluid transport, gas distribution, and hydraulic systems. These are available in both hex body and round body types and come with NPT, BSPT, BSP, NPTF, and NPSM threading. We specialize in Stainless Steel 316 and Stainless steel 316L fittings,.
Our core strengths include faster turnaround, a responsive support team, international packaging standards, and three decades of global supply experience. We maintain close customer communication and offer custom labeling and logo options as per client requirements. Our flexible production allows us to cater to urgent orders with a typical lead time of 4–6 weeks. We specialize in Brass hose barbs, Stainless Steel hose barbs and SS welding hose nipples.
Stainless Steel Weld Nipples Stainless Steel Weld Nipples are used to connect two sections of pipe through welding. They are manufactured from top-grade Stainless Steel including AISI 304, 316, 316L, and other grades as per ASTM A312, DIN 11850, and JIS standards. The surface finish is typically pickled, polished, or passivated for superior corrosion resistance. Weld nipples are available in two main body types: Hex Body, which offers better grip and wrenching options during installation, and Round Body, which provides a smooth, streamlined profile ideal for tight spaces or cosmetic applications. All nipples are machined to high precision on CNC and VMC machines.
Stainless Steel Welding Hose Nipples These nipples are specialized fittings used to connect flexible hoses to metal piping or other components. Stainless Steel Welding Hose Nipples are often used in hydraulic and pneumatic systems. We manufacture these nipples using precision forging or bar stock machining, offering options for NPT and BSPT threading. Customers can choose between Hex Body for tool-based installation and Round Body for weld-only fittings. Our parts conform to IS, BS, ASTM, and DIN standards and come with options for beadless weld ends or expanded ends depending on the hose type.
Stainless Steel Threaded Pipe Nipples Threaded Pipe Nipples are used where welding is not feasible. These nipples are threaded on one or both ends and are used in high-pressure fluid transmission systems. Our Stainless Steel Threaded Nipples are available in NPT, BSPT, BSP, and NPTF threads and are machined to tight tolerances with threading gauges and GO-NOGO verification. They are offered in both Hex Body, preferred for ease of installation, and Round Body, ideal for applications where aesthetics or compactness is key. We use only certified Stainless Steel bars and tubes ensuring metallurgical consistency and dimensional accuracy.
Material Grades
| Material Grade | Standard | Region |
|---|---|---|
| Stainless Steel 304, Stainless Steel 304L | ASTM A312 | USA |
| Stainless Steel 316, 316L | ASTM A312 | USA |
| 1.4401, 1.4301 | DIN 17456 | Europe |
| SUS 304, 316 | JIS G3459 | Japan |
| 0Cr18Ni9, 00Cr17Ni14Mo2 | GB/T 14976 | China |
Size Chart (Threaded Weld Nipples)
| Size (Inch) | NPT | BSPT | BSP | NPTF | NPSM |
| 1/4″ | Yes | Yes | Yes | Yes | Yes |
| 3/8″ | Yes | Yes | Yes | Yes | Yes |
| 1/2″ | Yes | Yes | Yes | Yes | Yes |
| 3/4″ | Yes | Yes | Yes | Yes | Yes |
| 1″ | Yes | Yes | Yes | Yes | Yes |
| 1-1/4″ | Yes | Yes | Yes | Yes | Yes |
| 1-1/2″ | Yes | Yes | Yes | Yes | Yes |
| 2″ | Yes | Yes | Yes | Yes | Yes |
Machinery Used
- CNC Lathes
- VMC Machines
- Thread Rolling Machines
- Bar Cutting Machines
- Polishing & Passivation Units
Industries Served
- Oil & Gas
- Chemical Processing
- Food & Beverage
- Water Treatment
- Marine & Shipbuilding
Tolerances & Finish
- Threads as per ANSI B1.20.1 (NPT), BS 21 (BSPT)
- Surface Finish: Ra < 1.6 µm or customized
- Dimensional Tolerance: ±0.05 mm on critical dimensions
Packaging & Shipping
- Custom packaging with logos and barcodes
- Export-worthy wooden or corrugated boxes
- Vacuum-sealed or anti-rust paper wrapping available
- Flexible quantities per box or pallet
Why Choose Us
- Over 30 years of global experience
- Fast lead times: 4-6 weeks
- Customization options for design, packaging, and labels
- Responsive pre- and post-sales support
- Expertise in international standards and documentation
Types of Hoses Compatible with Stainless Steel Weld Nipples
Stainless Steel Weld Nipples are widely used for integrating rigid piping systems with flexible hoses across various industrial sectors. These nipples ensure a leak-proof, corrosion-resistant connection and can be welded or threaded based on system requirements.
Compatible Hose Types & Applications:
Braided Stainless Steel Hoses
Application: Steam lines, water cooling systems, compressor lines
Why: High temperature and pressure resistance, excellent durability
PTFE (Teflon) Hoses with SS Braiding
Application: Chemical transfer, food-grade systems, pharma
Why: Chemically inert, hygienic, withstands aggressive fluids
Rubber Hydraulic Hoses
Application: Hydraulic equipment, heavy machinery
Why: Weld nipples provide a permanent leak-proof connection for high-pressure lines
Silicone Hoses
Application: Food & beverage, biotech, cosmetic fluid transport
Why: Weld nipples provide smooth, cleanable welds in sanitary-grade systems
Thermoplastic Hoses
Application: Chemical spray lines, lab systems
Why: Resistant to corrosion, compatible with low torque weld fittings
PVC & Nylon Hoses (with Ferrules or End Fittings)
Application: Light chemical or pneumatic lines
Why: Stainless Steel nipples provide enhanced mechanical stability
Steam & Hot Oil Hoses
Application: Process heating systems, thermal oil plants
Why: High-temperature endurance with robust welded seal
Flexible Corrugated Metal Hoses
Application: Exhaust systems, vibration isolation, cryogenic systems
Why: Excellent flexibility and longevity; weld nipples offer permanent joints
Customer Testimonial “We’ve been sourcing Stainless Steel nipples from Conex for over 5 years now. Their quality, turnaround, and responsiveness are world-class. Highly recommended for OEMs in the U.S.” – Michael H., Texas, USA
Glossary of Terms
- Weld Nipple: A short pipe piece used to connect pipelines via welding.
- NPT: National Pipe Thread, a U.S. standard for tapered threads.
- BSPT: British Standard Pipe Taper, a common thread form in Europe.
- Passivation: Chemical process that improves corrosion resistance of Stainless Steel.
- Hex Body: Nipple with a hexagonal center for wrench-tightening.
- Round Body: Smooth cylindrical nipple, preferred in clean designs or tight areas.
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