12-Inch Duplex Stainless Steel 90° Long Radius Elbow Delivered to UAE
Haihao Group has successfully supplied a batch of 12-inch 90 degree long radius butt weld elbows to a customer in the United Arab Emirates, supporting a critical pipeline project operating under high pressure and corrosive service conditions. The elbows were manufactured in duplex stainless steel ASTM A815 UNS S31803 and produced in full compliance with ASME B16.9 dimensional requirements.
Product Specifications
The supplied straight seam 90° long radius elbow features the following key parameters:
- Product: 90 Degree Long Radius Elbow (Butt Weld)
- Size: 12 inch
- Wall Thickness: SCH 100
- Radius: Long Radius (LR)
- Material: Duplex Stainless Steel ASTM A815 UNS S31803
- Standard: ASME B16.9
- Service Compliance: NACE MR0175 / ISO 15156
The elbow was designed for high-pressure transmission lines requiring excellent mechanical strength and corrosion resistance.
12 inch duplex stainless steel A815 S31803 90 degree long radius elbow
Advantages of ASTM A815 S31803 Duplex Stainless Steel
ASTM A815 UNS S31803 duplex stainless steel is widely used in oil & gas and petrochemical systems due to its balanced microstructure and superior performance. Compared with conventional austenitic stainless steel, S31803 offers:
- High strength with reduced wall thickness potential
- Excellent resistance to pitting and stress corrosion cracking
- Good performance in chloride-containing environments
- Proven suitability for sour service conditions
These properties make duplex stainless steel 90 degree elbows an ideal choice for demanding pipeline applications in the Middle East.
Quality Control and Inspection
To ensure reliability and long-term performance, Haihao Group applied strict quality control throughout production and inspection:
- Manufacturing in accordance with ASME B16.9
- BS EN 10204 Type 3.1 material certification
- Full chemical and mechanical testing
- Confirmation of compliance with NACE MR0175 / ISO 15156
- Strict control to prevent carbon steel contamination
Each elbow was inspected prior to shipment to meet both customer and project-specific requirements.
Typical Applications
This 12 inch SCH 100 duplex stainless steel elbow is commonly used in:
- Oil and gas transmission pipelines
- Offshore and onshore processing facilities
- High-pressure and corrosive service piping systems
- Sour service environments requiring NACE compliance
Trusted Supplier of Duplex Stainless Steel Pipe Fittings
With extensive experience supplying ASTM A815 duplex stainless steel fittings, Haihao Group supports EPC contractors and end users across the UAE and Middle East with stable quality, reliable delivery, and full compliance with international standards.