Super duplex S32750 fittings ASTM A815 elbow with NACE MR0175 compliance for corrosive environments

In the oil and gas industry, marine environments, and chemical processing systems, pipe fittings must withstand extreme pressure and aggressive corrosion. For such critical applications, Super Duplex S32750 fittings are among the most trusted and durable solutions. Haihao Group recently supplied a batch of high-quality Super duplex S32750 ASTM A815 elbow ASME B16.9 fittings to a Singaporean client, tailored for use in highly corrosive environments and fully compliant with NACE MR0175 / ISO 15156 standards.

Product Overview: ASTM A815 UNS S32750 LR Elbow

Product Type: Long Radius Elbow (LR ELBOW)

Material: ASTM A815 UNS S32750 (Super Duplex Stainless Steel)

Standard: ASME B16.9

Size: 2″ x 0.344″ wall thickness, 90-degree

Ends: Beveled Ends (BE)

Specification Compliance: NACE MR0175 / ISO 15156, fully aligned with the client’s MDS requirements

This configuration ensures excellent corrosion resistance, high mechanical strength, and superior performance under harsh conditions, making it ideal for offshore, subsea, and chemical plant pipelines.

Why Choose Super Duplex S32750 Fittings?

Outstanding Corrosion Resistance

The high chromium (24–26%), molybdenum (3–5%), and nitrogen (0.2–0.3%) content of UNS S32750 ensures exceptional resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion. It is perfectly suited for salty, acidic, or chemically aggressive environments.

High Mechanical Strength

Super Duplex S32750 offers double the strength of standard austenitic stainless steels. This allows for thinner wall designs and reduced weight, which are particularly beneficial in offshore structural applications.

NACE MR0175 / ISO 15156 Certification

For equipment used in sour gas environments, compliance with NACE MR0175 and ISO 15156 is essential. Our elbows meet these requirements, ensuring safety and long-term performance in hydrogen sulfide (H₂S)-containing environments.

Dimensional Accuracy & Welding Compatibility

Manufactured according to ASTM A815 and ASME B16.9 standards, our elbows provide excellent dimensional consistency. The ASME B16.25 beveled ends ensure reliable weldability and integration into piping systems.

Typical Applications

Haihao’s Super Duplex S32750 elbows are ideal for:

• Offshore oil & gas platforms
• FPSO (Floating Production Storage and Offloading) systems
• Petrochemical and chemical processing plants
• Desalination plants
• Subsea piping systems

Why Choose Haihao Group?

With decades of experience in pipe fittings manufacturing and global supply, Haihao Group is your trusted partner for both standard and customized piping components. We offer:

• Full certification and material traceability
• Compliance with ASTM, ASME, GOST, EN, and other global standards
• On-time delivery and international shipping support
• Custom production based on project MDS and specifications

If your project requires high-performance fittings in aggressive environments, our ASTM A815 elbow ASME B16.9 made from super duplex S32750 is the optimal solution. With NACE MR0175 / ISO 15156 compliance, excellent strength, and top-tier corrosion resistance, these fittings deliver unmatched reliability.

Contact Haihao Group today to request a quote, discuss specifications, or get expert technical support. Email:sales@haihaogroup.com