
ASTM A815 Stainless Steel Pipe Fittings
Grade: WPS31803 (UNS S31803), WPS32750 (UNS S32750), WPS32760 (UNS S32760), WPS32205 (UNS S32205)
OD: NPS 1/2" - 48"
WT: SCH 5S, 10S, 40S, 80S, XS, XXS
Product Overview
ASTM A815 stainless steel pipe fittings are designed for high-performance piping systems requiring strength and structural reliability. They are widely used in chemical processing, energy, and offshore applications where strict service conditions are involved.
Key Features
- Tailored for dual-phase systems with strict microstructure management.
All fittings undergo meticulous solution annealing and rapid cooling to achieve a precise 50:50 austenite-ferrite balance, preventing brittle sigma-phase precipitation at welded seams or hot-bent areas.
- Reinforced geometric stability under extreme high-pressure operations.
Formulated with high-strength duplex and ferritic alloys, these fittings offer double the yield strength of standard austenitic grades, allowing pipelines to safely handle severe cyclic loads and pressure surges.
- Precise beveling and dimensional control for fast on-site pipe alignment.
Manufactured via advanced forming and machining, all elbows, tees, and reducers strictly follow ASME B16.9 tolerances, ensuring flawless edge preparation and error-free fit-up for field welding.
Mechanical Properties
| Property | Minimum Requirement (e.g., UNS S31803) | Test Standard |
| Tensile Strength | ≥655MPa | ASTM A370 |
| Yield Strength | ≥450MPa | ASTM A370 |
| Elongation | ≥25% | ASTM A370 |
| Impact Toughness | Excellent at sub-zero temperatures (Charpy V-Notch) | ASTM E23 |
| Corrosion Resistance | Highly resistant to pitting & SCC (PREN≥35) | ASTM A923 Method C |
Specifications
| Item | Details |
|---|---|
| Standard | ASTM A815 |
| Size | 1/2" – 48" |
| Thickness | SCH10 – SCH160 |
| Types | Elbow, Tee, Reducer, Cap |
| Surface | Pickled / Polished |
Grade Reference Table

Quality & Certifications
- Compliant with ASTM A815 standard
- Certified to ISO 9001:2015 quality management system
- PED 2014/68/EU and AD2000-W0 certified
- Approved by major international inspection agencies (TÜV, SGS, BV, DNV, ABS, LR, etc.)
- Material Test Certificates (EN 10204 3.1) available
Packaging & Supply
- Export-standard packaging with reinforced protection for safe long-distance transportation
- Moisture-proof and anti-damage inner protection applied
- Flexible MOQ and fast delivery supported by ready stock
- Custom production and packaging available based on specifications and project requirements
Shipping & Delivery
- Shipping methods: sea freight, air freight, and express delivery
- Common logistics partners: DHL, FedEx, UPS (for samples or small orders)
- Bulk orders typically shipped by sea (FCL / LCL)
- Flexible Incoterms: EXW, FOB, CFR, CIF
- Fast delivery supported by stable inventory
FAQ
Q1: What is ASTM A815 mainly used for?
A: ASTM A815 pipe fittings are designed for high-strength and corrosion-resistant piping systems, especially in demanding environments such as chemical processing, oil & gas, and offshore applications.
Q2: What is the advantage of S31803 duplex stainless steel?
A: S31803 offers higher strength and better resistance to stress corrosion cracking compared to standard stainless steels, making it ideal for aggressive and high-pressure environments.
Q3: Can you provide material test certificates (MTC)?
A: Yes, we can provide EN 10204 3.1 material test certificates, including chemical composition and mechanical property reports upon request.
Q4: Do you support third-party inspection?
A: Yes, third-party inspection by SGS, BV, or other agencies can be arranged to ensure product quality and compliance with project requirements.
Q5: Can you manufacture according to drawings or custom specifications?
A: Yes, we support OEM and custom production based on technical drawings, standards, or specific project requirements.
Q6: What is your delivery time?
A: Standard products are available from stock for fast delivery, while customized orders depend on specifications and order quantity.
Contact us
Mob: +86-13772502581
Email: judesteel@juqing.hk
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