ASTM A790 S32750 Super Duplex Seamless Boiler Tube High Corrosion Pressure Resistance
ASTM A790 S32750 Super Duplex Seamless Boiler Tube – High Corrosion & Pressure Resistance
1. Product Overview
ASTM A790 S32750 Super Duplex Seamless Boiler Tubes are engineered for extreme environments in boilers, heat exchangers, and offshore platforms. Manufactured under ASTM A790/ASME SA790 standards, these tubes combine exceptional corrosion resistance with high mechanical strength, ideal for chloride-rich and high-pressure applications.
2. Material & Chemical Composition
- Material: Super Duplex Stainless Steel (UNS S32750, equivalent to 2507).
- Key Chemical Properties:
3. Mechanical Properties
4. Key Features & Advantages
- Superior Corrosion Resistance: Resists pitting, crevice, and stress corrosion cracking (PREN >40).
- High-Temperature Performance: Suitable for -50°C to 300°C environments.
- Seamless Design: No welds, ensuring leak-proof performance under high pressure.
- Certified Quality: Complies with ASTM A790, ASME SA790, and EN 10216-5.
5. Applications
- Oil & Gas: Subsea pipelines, FPSO systems.
- Chemical Processing: Acid transport, flue gas desulfurization (FGD).
- Power Plants: High-pressure steam boilers.
6. FAQ
Q: How does S32750 compare to standard duplex grades like 2205?
A: S32750 has higher Cr, Mo, and N content, offering 50% greater strength and better chloride resistance.
Q: Can you supply custom sizes?
A: Yes! We support OD: 10–1200mm, thickness: 1–50mm, and lengths up to 18m.
About Yuhong Holding Group Co., Ltd
With 20+ years of export experience, Yuhong Group is a top-5 Chinese manufacturer of finned tubes and seamless pipes. Our 55 production lines and 20,000㎡ facility ensure high-capacity output, while advanced technology guarantees precision.
- Website: www.steelfintube.com
- Contact: Jimmy (Email: jimmy@steelseamlesspipe.com, WhatsApp: +86 18892647377).
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.