2507 Super Duplex Stainless Steel Seamless Pipe UNS S32750 ASTM A789 Pickled Annealed OD6-1000mm

2507 Super Duplex Stainless Steel Seamless Pipe

2507 (UNS S32750 / DIN 1.4410 / EN X2CrNiMoN25-7-4 / F53) is a super duplex stainless steel combining high chromium, molybdenum and nitrogen to reach a PREN above 40. It delivers outstanding resistance to chloride pitting, crevice corrosion and stress corrosion cracking together with roughly twice the yield strength of conventional austenitic grades. Our seamless pipes are manufactured to ASTM A789 / A790 and supplied pickled and annealed for demanding seawater and process service.

Product Specifications

Key Advantages

• Superior corrosion resistance: PREN ≥ 40 resists chloride pitting, crevice attack and stress corrosion cracking in aggressive media.
• High strength: yield strength ≥ 550 MPa allows thinner walls and weight savings on offshore and subsea projects.
• Seawater service: ideal for high-chloride environments where 316L and even 2205 reach their limits.
• Certified quality: supplied with material test report (MTR), hydrostatic and eddy-current testing; SGS/BV inspection on request.
• Reliable supply: 15,000-ton stock, 12+ years of export experience and short lead times.

Applications

Offshore oil and gas, subsea pipelines and risers, seawater cooling and desalination systems, chemical and petrochemical processing, heat exchangers, pulp and paper machinery, and flue gas desulfurization equipment.

Packing & Delivery

• Standard export packing: wooden case or steel bundle with PVC end caps, or as per customer's request.
• Delivery: 7-15 days after receipt of deposit.

Why Choose Us

Jiangsu Mittel Steel Industrial Limited has supplied stainless steel sheet, plate, coil, bar and pipe since 1998. With an 80-90% export share and 15,000 tons in stock, we back every shipment with SGS, BV and ISO 9001:2015 certification. Custom grades, sizes and finishes are available on request.