Import 310s Stainless Steel Bar — Buy in wholesale FOB from Supplier in China

310S stainless steel bar from Jiangsu Steel Group Co., Ltd. is an austenitic grade containing 24-26% chromium and 19-22% nickel with maximum carbon content of 0.08%. This composition confers exceptional resistance to oxidation and carburisation at temperatures up to 1150°C, distinguishing it from standard 304 grades that degrade above 800°C. The material is available in round, square, flat, hexagonal, angle, channel, and threaded profiles, with outer diameters ranging from 1.0 mm to 400 mm and standard mill lengths of 3000 mm or 6000 mm, though custom lengths are offered per customer specification.

Surface finishes span hot rolled black, acid-pickled, cold drawn bright, and polished conditions, each suited to different downstream processing requirements. Cold drawn bars achieve tighter dimensional tolerances, typically H9 per industry standard, and superior straightness compared to hot rolled product. The 310S grade maintains austenitic stability across the full service temperature range, eliminating phase transformation concerns that affect ferritic or martensitic grades during thermal cycling. Chromium content above 24% forms a tenacious Cr₂O₃ scale that reforms after mechanical damage, provided oxidising conditions persist.

Primary applications include furnace components, heat treatment fixtures, heat exchanger tubesheets, chemical processing vessels, and petrochemical reactor internals. Power generation sectors use 310S for burner nozzles and superheater tubing supports. The round bar form serves machined components, while flat and angle profiles suit fabricated structures. Importers should note that Jiangsu Steel Group's registered address is 10/f No.257 Siping Road, Shanghai 200080, Hongkou District, though the place of origin for steel production is Jiangsu province. The supplier carries imported and harbor trust tiers with a 0.00% platform response rate, necessitating direct engagement for technical and commercial confirmation.

Jiangsu Steel Group Co., Ltd. maintains its registered office at 10/f No.257 Siping Road, Shanghai 200080, Hongkou District, China, while steel production originates from Jiangsu province. The supplier holds both imported and harbor trust tier classifications on the platform, with a 0.00% response rate and zero recorded average response hours. No ISO9001 certificate number, audit date, or scope is provided in the listing, nor are manufacturing capacity figures, melt shop versus rolling mill ownership, or export licence details stated. The brand name HENGDA STEEL is referenced as the product brand.

The product range extends across austenitic, ferritic, and martensitic stainless grades from 201 through 430 series, suggesting a broad melting and rolling capability. The listing does not specify whether Jiangsu Steel Group operates its own melt shop or sources continuous cast billets and blooms from partner mills. No information is provided on AOD refining practice, argon oxygen decarburisation control, or whether vacuum induction melting is available for specialised orders. Buyers requiring material certification to EN 10204 3.1 or 3.2, or specific NDT testing, should confirm capability and lead time directly with the supplier given the absence of response data on the platform.