Import Astm A312 Tp316l Stainless Steel Welded Pipe — Buy in wholesale FOB from Supplier in China

Foshan Kuanyu Stainless Steel Co., Ltd. supplies ASTM A312 TP316L stainless steel welded pipe manufactured to ASME B36.19M and B36.10M dimensional standards, with a size range from 1/4 inch to 84 inches and wall thicknesses covering SCH-5S, SCH-10S, SCH-40S, and SCH-80S schedules. The TP316L grade is an austenitic stainless steel with controlled low carbon content (maximum 0.03%), chromium at 16-18%, nickel at 10-14%, and molybdenum at 2-3%, which gives it markedly better resistance to chloride-induced pitting and crevice corrosion than standard 304 grades. The material is widely specified for welded pipe applications where post-weld sensitisation must be avoided, and the low carbon content minimises carbide precipitation in the heat-affected zone during welding.

The pipe conforms to ASTM A312, A249, A269, and A778 standards, with the welded construction typically produced by automatic TIG or plasma-arc processes followed by cold working and annealing. Typical surface finishes for welded 316L pipe include pickled, annealed, and passivated conditions, with internal weld bead removal available for hygienic or high-flow applications. In standard industry practice, 316L welded pipe is supplied in random lengths of 5-7 metres or cut-to-length on request, with end preparations including plain end, bevelled end, or threaded and coupled configurations. The molybdenum addition in 316L provides enhanced performance in mildly acidic and halide-containing environments, though it does not match the resistance of super-austenitic or duplex grades for severe service.

Primary applications span chemical processing plants, oil and gas transmission, petrochemical refineries, marine seawater handling, pharmaceutical equipment, and food and beverage processing systems. Buyers typically include engineering procurement contractors, industrial maintenance departments, OEM fabricators of pressure vessels and heat exchangers, and marine outfitters. The listing indicates loading from Foshan, Guangzhou, or Shenzhen ports with delivery terms offered as FOB, CFR, CIF, or EXW. Buyers should confirm current mill test certificate availability, third-party inspection protocols, and exact dimensional tolerances before placing orders, as response data from this supplier is not yet established.

Foshan Kuanyu Stainless Steel Co., Ltd. operates from No.25-31, Block E1, Liyuan Metal Logistics Mall in Foshan, Guangdong Province, China, placing it within one of the country's largest concentrated stainless steel distribution and processing hubs. The supplier holds a Harbor trust tier classification on the marketplace, which indicates a baseline verification level for business registration and operational presence. The response rate is recorded at 0.00% with an average response time of zero hours, meaning either no inquiry data has accumulated or the profile has not yet generated measurable engagement. Buyers should treat initial contact as untested and request direct communication channels, verification documents, and recent transaction references before committing to orders.

The company lists ASTM A312 TP316L welded pipe across multiple standards and a broad size range, suggesting stocking or mill-direct arrangements rather than in-house manufacturing. The product description references loading from Foshan, Guangzhou, or Shenzhen ports and offers FOB, CFR, CIF, and EXW terms, which indicates flexibility in trade execution. Notably absent from the profile are ISO 9001 or other quality management certifications, factory audit results, annual turnover figures, employee counts, and named client references. The named contact is Ms. Christine. Buyers should independently verify production capability, inspection equipment, and certificate authenticity through video calls or third-party audits.