Leading Large Diameter Stainless Steel Pipe Manufacturers in China
Large Diameter Stainless Steel Pipe is designed for high-capacity fluid transport and structural applications, featuring outer diameters typically exceeding 24 inches. Available in seamless or welded forms (e.g., LSAW, SSAW), they are engineered to handle substantial volumes and pressures, making them a preferred choice for industries like oil and gas, water treatment, chemical processing, and construction. Compliant with standards like ASTM A312 and A790, large diameter stainless steel pipes deliver reliable performance where scale and resilience are paramount.
Specifications for Large Diameter Stainless Steel Pipe
| Category | Details |
|---|---|
| Characteristics | Austenitic (304/316) or duplex alloys; high Cr (18-28%), Ni (8-22%), Mo (2-5%); seamless or welded (LSAW/SSAW). |
| Surface Treatment | Mill finish (annealed/pickled); optional polished (240-600 grit), brushed, passivated, or coated. |
| Dimensions and Specs | OD: >24”–100”; Thickness: Sch 5S–XXS; Length: 6m or custom; meets ASTM A312, A790, ASME B36.19M. |
| Corrosion Resistance | Excellent vs. acids, chlorides (316/duplex superior); PREN 30-40+ (duplex); degrades >300¡ãC in some cases. |
| Mechanical Properties | Yield: 170-550 MPa; Tensile: 485-800 MPa; Elongation: ≥25-35%; Hardness: ≤92 HRB (304/316), ≤32 HRC (duplex). |
| Processability | Good formability/weldability (304/316); moderate for duplex; welded (LSAW/SSAW) or seamless production. |
| Applications | Oil & gas pipelines, water treatment, chemical processing, construction, marine systems. |
| Standards | ASTM A312, A790, A928; ASME B36.19M, SA312, SA790; API 5L; EN 10217-7; NACE MR0175. |
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Choose the Large Diameter Stainless Steel Pipe You Can Trust
Power your infrastructure with Large Diameter Stainless Steel Pipe! Built for strength and corrosion resistance, it’s perfect for oil & gas, water treatment, and industrial systems. Contact us today to customize your ASTM A312 or A790-compliant solution.
