BS970 709M40 709M40T

UK Deliveries. Contact our well informed sales team. 709M40 alloy steel stockists and suppliers. 709M40 is a high tensile chromium molybdenum alloy steel usually supplied readily machineable in ‘T’ condition as 709M40T. Offering good ductility and shock resisting properties combined with resistance to wear, 709M40 is a widely used alloy steel specification. 709M40 can be flame or induction hardened. 709M40 Hardening: Heat uniformly the 709M40 tool to 820/840?C until heated through. Quench in oil. Tempering: Heat the 709M40 tool uniformly and thoroughly at the selected tempering temperature, and hold at heat for one hour per inch of total thickness.