3AH

Description: Air-hardening Tool Steel Welding Alloy

Harris 3AH tool steel is used to weld AISI A2 - A6 air hardening tool steels. Preheat the part to as high a temperature as is consistent with the final hardness requirements, preferably in the range of 300-1000F (250-538C). Post heat or temper the deposit as per the chart.