Import A516 Grade70|Pressure Vessel Steel Plate — Buy in wholesale FOB from Supplier in China

A516 Grade 70 pressure vessel steel plate is a normalised carbon steel product manufactured to ASTM A516 standards, with this listing specifying the Grade 70 variant that offers the highest tensile strength within the A516 family. The plate is engineered for high-pressure boiler and pressure vessel fabrication, where resistance to brittle fracture and reliable performance under cyclic loading are critical. Henan HZZ Iron and Steel Co., Ltd. supplies this material from their base in Zhengzhou, Henan Province, China, with the specific thickness range and dimensional tolerances to be confirmed directly with the supplier for each order.

The material composition centres on killed carbon steel with controlled silicon and manganese additions to optimise weldability and notch toughness. Typical heat treatment involves normalising, which refines the grain structure and improves impact resistance at low temperatures, a standard requirement for pressure equipment subject to ASME Boiler and Pressure Vessel Code compliance. The Grade 70 designation specifies a minimum tensile strength of 485-620 MPa and minimum yield strength of 260 MPa, with typical elongation of 17% in 200mm gauge length. Mill test certificates should report actual chemical analysis and mechanical test results, including Charpy V-notch impact values where specified by the purchaser.

Buyers for this product include fabricators of pressure vessels, storage tanks, boilers, and heat exchangers serving power generation, oil and gas, petrochemical, and general process industries. The hot-rolled finish facilitates subsequent machining, forming, and welding operations. Trade terms, minimum order quantities, and lead times are not stated in this listing and must be negotiated with Henan HZZ Iron and Steel Co., Ltd. directly. Packaging typically involves steel strapping and wooden skidding for ocean freight, though specific protection against saltwater corrosion during transit should be discussed with the supplier.

Henan HZZ Iron and Steel Co., Ltd. operates from Jincheng International Building in Zhengzhou, the capital of Henan Province in central China, a region with established steel production and distribution infrastructure. The supplier carries an 'imported' tier classification and a 'harbor' trust tier, indicating platform-acknowledged participation without the highest verification level. The response rate is recorded at 0.00% with average response hours of zero, which suggests either a new listing, limited platform engagement, or data collection gaps. Buyers should not assume responsiveness and should establish direct contact channels before relying on this supplier for time-critical procurement.

The company profile does not disclose production capacity, mill equipment, annual turnover, workforce size, or specific client references. There is no stated history of years in operation, no listed certifications held by the supplier independently of the product grade, and no mention of export licence numbers or API monogram authority. What the listing does present is a specific product specialisation, ASTM A516 Grade 70, which implies familiarity with pressure equipment steel standards. Buyers are advised to request a company brochure, quality manual, and recent mill test certificate samples during initial qualification.