When you need reliable connections for demanding industrial systems, ASTM A790 pipe nipples deliver unmatched performance. Designed for critical applications in corrosive environments, our duplex stainless steel fittings combine superior strength with exceptional durability. As a trusted supplier, we manufacture ASTM A790-compliant pipe nipples that meet rigorous global standards while offering flexible customization.
Engineered for harsh conditions, the products are the go-to solution for oil & gas, chemical processing, and marine applications. Their duplex stainless steel construction provides:
| Parameter | Details |
|---|---|
| Material Grades | S31803/S32205, 304/316L, Super Duplex S32750 |
| Size Range | 1/8" to 4" (custom up to 24") |
| Length | 50mm–400mm (±0.5mm tolerance) |
| Pressure Rating | Up to 10,000 PSI |
| End Types | TBE, PBE, PLE/TSE, BLE/TSE |
| Certifications | ASTM A790, ISO 9001, CE, NACE MR0175 |
Every product undergoes third-party testing to verify compliance with pitting resistance (PREN ≥35) and stress corrosion cracking thresholds.
Our GMP-certified facilities ensure:
Need non-standard sizes or threading? Our R&D team adapts to your specs within 72 hours.
Choose from 5,000+ ASTM A790 pipe nipples in stock, with expedited shipping to meet tight deadlines.
✅ 25+ Years of Expertise in stainless steel fabrication
✅ ISO 9001 & PED Certified production lines
✅ 15-Day Standard Lead Time for bulk orders
✅ 1-on-1 Technical Support from inquiry to installation
We enforce a 7-step quality protocol:
1. Raw material verification
2. Chemical composition analysis
3. Mechanical strength testing
4. Dimensional accuracy checks
5. Surface integrity inspection
6. Hydrostatic pressure validation
7. Final certification review



Q: Can you match DIN or JIS threading standards?
A: Absolutely! Share your requirements, and we’ll adapt our tooling accordingly.
Q: Do you provide NACE MR0175-certified nipples?
A: Yes, our S31803/S32205 grades meet NACE standards for sour gas service.
Q: What’s the MOQ for custom orders?
A: We accept orders from 50 pieces upwards.
Q: How are the pipe nipples packaged?
A: We use anti-rust VCI film + wooden crates for maximum transit protection.
Q: Can I get samples before bulk ordering?
A: Free samples are available for qualified buyers.
📧 Email: info@sxqinsteel.com
Request a quote within 2 hours and enjoy:
Optimize your piping systems with ASTM A790 pipe nipples that balance cost, performance, and longevity. Let’s build your next project on a foundation of certified quality!
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