Import A2 Tool Steel — Buy in Bulk from Supplier in China

A2 tool steel is an air-hardening cold work steel with a chromium content of approximately 5%, supplied by Shanghai Unite Steel from China. The material is characterised by maximum dimensional stability during heat treatment, high abrasion resistance, and good toughness, with a typical as-supplied hardness of HB 231 maximum in the annealed condition. After proper heat treatment, hardness in the range of 57-62 HRC is achievable, placing this grade between O1 and D2 in the standard tool steel hierarchy for general-purpose cold work applications.

The alloy composition of A2 tool steel provides a balanced combination of wear resistance and toughness that exceeds that of high-carbon steels whilst offering superior machinability and grindability compared to high-chromium D-type steels. Shanghai Unite Steel supplies this material in hot-rolled and hot-forged forms according to customer requirements. Standard industry practice involves careful control of forging temperatures between 1050-1100°C, with reheating as necessary to maintain workable conditions, followed by very slow cooling in vermiculite or equivalent insulating media to prevent thermal cracking and distortion.

Applications for this steel grade include bending dies, blanking dies, forming dies, cold shears, punch plates, threading taps, shear blades, slitters, and plastic mould dies. Buyers sourcing from Shanghai Unite Steel should confirm specific delivery forms, dimensional tolerances, and surface condition requirements directly, as the listing provides outline specifications rather than guaranteed batch data. The supplier's imported tier status and harbor trust tier indicate established international trade engagement, though the zero percent response rate suggests communication delays that prospective importers should factor into their procurement timeline.

Shanghai Unite Steel operates from Room 1109, Floor 11, No. 275-8, Guoding, Shanghai 200433, China, positioning the company within one of China's principal steel trading and distribution hubs. The supplier holds an imported tier classification, indicating engagement with international sourcing or distribution networks rather than domestic-only operations. The harbor trust tier assigned to this supplier reflects a baseline verification status within marketplace systems, though buyers should conduct independent due diligence as with any cross-border transaction.

Critical gaps exist in the available supplier profile: no response rate data is recorded (0.00% with zero average response hours), which prospective buyers must treat as a significant communication risk factor. The listing does not disclose production capacity, export licence specifics, quality management system certifications, or established client references. Shanghai Unite Steel's offering centres on A2 tool steel in hot-rolled and hot-forged forms with customisation to customer specifications, but importers should verify material certification, mill test report availability, and sample provision protocols before committing to volume orders.