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Duplex UNS S31803 and Super Duplex UNS S32750 Stainless Steel Stub Ends with Seamless Construction for Butt Weld Applications
Product Details
| Material Standard | ASTM A815 | Material Grade | UNS S31803, UNS S32750 |
|---|---|---|---|
| Type | Seamless, Butt Weld | Size Range | 1/2 Inch - 36 Inch |
| Wall Thickness | SCH40S, SCH80S | Connection Type | Butt Weld End |
| Standard | ANSI B16.9, MSS SP-43 | Surface Treatment | Pickling, Passivation |
| Highlight | Duplex Stub End,UNS S31803 Stub End,Super Duplex Stub End |
||
Product Description
Duplex UNS S31803 S32750 Stainless Steel Stub Ends Seamless Butt Weld 1/2 Inch to 36 Inch SCH40S SCH80S ANSI B16.9
Product Overview
Advanced duplex and super duplex stainless steel stub ends combining exceptional strength with outstanding corrosion resistance. UNS S31803 duplex offers roughly double the yield strength of standard austenitic grades, while UNS S32750 super duplex provides even higher strength and superior resistance to chloride stress corrosion cracking.
Key Features
- High Strength: Yield strength approximately 2x that of 304/316 austenitic grades, enabling thinner wall designs and material cost savings
- Superior SCC Resistance: Excellent resistance to stress corrosion cracking in chloride-containing environments
- Seamless Construction: Cold formed from seamless pipe for uniform microstructure and reliable performance
- Dual Grade Options: UNS S31803 for standard duplex applications; UNS S32750 for super duplex high-demand service
- Full Certification: ISO, TUV, SGS certified with chemical and mechanical test reports
Technical Specifications
| Parameter | Specification |
|---|---|
| Material Standard | ASTM A815 |
| Material Grade | UNS S31803 (Duplex), UNS S32750 (Super Duplex) |
| Size Range | 1/2" - 36" (DN15 - DN900) |
| Wall Thickness | SCH40S, SCH80S |
| Manufacturing Method | Seamless Cold Formed |
| Standard | ANSI B16.9, MSS SP-43 |
| Yield Strength | ≥ 450 MPa (S31803), ≥ 550 MPa (S32750) |
Applications
Engineered for demanding industrial applications including:
- Oil and gas offshore platforms
- Subsea piping systems
- Desalination plants
- Chemical tankers
- Heat exchangers
- Pulp and paper digesters
- High-pressure corrosive service requiring maximum strength-to-weight ratio
Packaging & Delivery
Standard shipping package with protective end caps and corrosion inhibitor. Delivery: 15-30 workdays. Supply capacity: 10 tons per month. Custom specifications available upon request.
Request a quote today for Duplex and Super Duplex Stainless Steel Stub Ends. ISO/TUV/SGS certified, competitive pricing, worldwide shipping.
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