ASTM A312 Big Diameter Welded Stainless Steel Pipes, Tubes and Tubings for Liquid Delivery

ASTM A312 Big Diameter Stainless Steel Pipe and Tube are suit for Petrochemical Industry. ASTM A312 is a Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes and Tubes.

ASTM A312 standard covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe/tubes intended for high-temperature and general corrosive service.

We have our ASTM A312 Stainless Steel Welded Pipes/Tubes passed Nondestructive Electric Test. 

The production technology of ASTM A312 Big Diameter Stainless Steel Welded Pipes is different from the small diameter stainless steel pipes.

For meeting the different customers' requirements, we have developed the technology for producing the big diameter stainless steel pipes.

Being a professional manufacturer of welded stainless steel pipes and tubes, we can supply many kinds of welded stainless steel pipes and tubes over 12000 tons per year. All of the stainless steel pipes and tubes we product include AISI 201, 202, 301, 304 and 316L which are pickling and widely used in many area, just like pharmacy, food industry, petroleum industry, heat exchange and decoration. We manufacture the welded stainless steel tubes and pipes meeting the ASTM A249/A269, A270, A312, A554 and DIN 118509 requirements.

We are always improving our technique about welded stainless steel tubes and pipes production.

We also accept OEM orders and production.

1) Material of stainless steel: 201(approx 0.8-1.1% Nickel, 14.5-16% Chromium)202(approx 3.5-5.5% Nickel, 15--16% Chromium)304(approx 7.8-9% Nickel, 17-19% Chromium) 316L(approx 10-12% Nickel, 15-17% Chromium, 1-2.5% molybdenum and ≤0.03% Carbon)And so on. The original materials import form India, Korea and Taiwan, Such as YUSCO, BNG, POSCO and JINDAL. 2) Process method: Cold drawn, Pickling, Polishing, Annealing, Inner bead Removed, Inner Pplishing, TIG welded, Plasma Arc Welded.3) Standards: ASTM A312

4) Mark: Steel Seal and Label5) Applied field: Decoration, Heat-Exchanger, Condenser Tubes, Sanitation, food industry , Petroleum and Gas Industry and Liquird Delivery.6) Tolerance: Outer Diameter: +/-0.2mm, thickness: +/-0.03mm and length: +/-5mm 7) Packaging: Inner packing: 1 plastic bag (polythene) / piece, and 500kgs is packed in one bundle. Outer packing: Kraft paper, wooden cases or according to customers' requests.

ASTM A312 Big Diameter Welded Stainless Steel Pipes, Tubes and Tubings for Liquid Delivery