Leading Large Diameter Stainless Steel Pipe Manufacturers in China
Large Diameter Stainless Steel Pipe, typically with outer diameters exceeding 24 inches, is engineered for high-volume fluid transport and heavy-duty structural applications. Constructed from corrosion-resistant alloys, these pipes combine exceptional strength, durability, and resistance to aggressive environments. Available in seamless or welded configurations (e.g., LSAW, SSAW), they are designed to withstand substantial pressures and corrosive conditions, making them essential for industries such as oil and gas, water treatment, chemical processing, and infrastructure development.
Specifications for Large Diameter Stainless Steel Pipe
| Category | Details |
|---|---|
| Characteristics | Austenitic (304/316) or duplex; 18-28% Cr, 8-22% Ni, up to 5% Mo; seamless or welded for high-volume use. |
| Surface Treatment | Mill finish (annealed/pickled); optional polished (240-600 grit), brushed, passivated, or coated (e.g., 3LPE). |
| Dimensions and Specs | OD: >24”–100”+; Thickness: Sch 5S–XXS; Length: 6m or custom; ASTM A312, A790, ASME B36.19M. |
| Corrosion Resistance | 304: Good in mild conditions; 316: Strong in chlorides; Duplex: Best vs. pitting/SCC (PREN 30-40+). |
| Mechanical Properties | Yield: 170-550 MPa; Tensile: 485-800 MPa; Elongation: 25-35%; Hardness: ≤92 HRB (304/316), ≤32 HRC (duplex). |
| Processability | Austenitic: Easy to form/weld; Duplex: Needs more force/controlled welding; welded (LSAW/SSAW) common. |
| Applications | Oil & gas, water treatment, chemical processing, construction, power generation. |
| Standards | ASTM A312, A790, A928; ASME B36.19M, SA312, SA790; EN 1.4301/1.4404/1.4462; API 5L, NACE MR0175. |
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Choose the Large Diameter Stainless Steel Pipe You Can Trust
Strengthen your infrastructure with Large Diameter Stainless Steel Pipe! Designed for durability and corrosion resistance, it’s ideal for oil & gas, water treatment, and heavy industry. Contact us now to customize your ASTM A312 or A790-compliant pipes—build with confidence today!
