S7 Tool Steel Hardness Range

The diameter on these rods is precision ground while the straightness is held to a strict tolerance.

S7 tool steel hardness range.

S7 tool steel properties. However the aisi sae tool steel code categorizes tool steels based on basic application and material characteristics. Crucible s7 aisi s7 crucible s7 is a shock resistant air hardening tool steel designed for high impact resistance at relatively high hardness. Also known as drill rod they are ready for turning in a lathe.

Hudson tool steel shares technical data for s7 shock resisting tool steel including impact toughness. S7 tool steel is produced and supplied to the machinist or tool maker in the annealed or soft condition. Additional material processing and application information for a wide range of tool steel types is available here. Often made into chisels rivets and punches s7 tool steel can handle repeated impact without fracturing.

S7 tool steel is a shock resistant grade containing high impact properties. It offers toughness to withstand chipping and breaking combined with high attainable hardness and good wear resistance. S 7 is typically heat treated and used in the rockwell c hardness range of rc 54 59. Sizes over 2 inches 63 5mm in cross section will not achieve full hardness by cooling in air.

It is necessary to increase the quench cooling rate between 1400 to 900 f 760 to 482 c by using. Or warm oil to 150 125 f 66 51 c. Its charpy a test that measures the impact strength is over 200 ft lb.