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Heat treatment and delivery status of 35CrMnSiA steel plate

35CrMnSiA steel plate is a low-alloy ultra-high-strength steel. After heat treatment, it has good comprehensive mechanical properties, high strength, sufficient toughness, hardenability, weldability (preheating before welding), processing and formability, but corrosion resistance And low oxidation resistance, it is generally used after low temperature tempering or austempering.

Specification for heat treatment of 35CrMnSiA steel plate
(1) Quenching: the first time is 950℃, the second time is 890℃, oil cooling; tempering is 230℃, air cooling, oil cooling;
(2) Austempered at 880℃ at 280~310℃.

Delivery status of 35CrMnSiA steel plate
The delivery status should be specified in the contract when delivered by heat treatment (normalizing, annealing or high temperature tempering) or without heat treatment.