S7 Tool Steel Hardness Range

S7 tool steel is a shock resistant grade containing high impact properties.

S7 tool steel hardness range.

As an air hardening grade s7 is stable for heat treatment and its combination of high machinability and dimensional stability makes it ideal for a variety of different tool and. Sizes over 2 inches 63 5mm in cross section will not achieve full hardness by cooling in air. Often made into chisels rivets and punches s7 tool steel can handle repeated impact without fracturing. Its charpy a test that measures the impact strength is over 200 ft lb.

It offers toughness to withstand chipping and breaking combined with high attainable hardness and good wear resistance. Or warm oil to 150 125 f 66 51 c. Hudson tool steel shares technical data for s7 shock resisting tool steel including impact toughness. S7 tool steel properties.

However the aisi sae tool steel code categorizes tool steels based on basic application and material characteristics. S7 tool steel is a versatile formulation suitable for both cold and hot work service. The diameter on these rods is precision ground while the straightness is held to a strict tolerance. It is an air hardening material.

S7 tool steel is produced and supplied to the machinist or tool maker in the annealed or soft condition. Also known as drill rod they are ready for turning in a lathe. It is necessary to increase the quench cooling rate between 1400 to 900 f 760 to 482 c by using.