Hardening Process Of Din 1 7225 Alloy Material To Obtain Martensitic Structure - China

din 1.7225 alloy material hardening

this heat treatment will obtain a martensitic structure after quenching.

it should be carried out between 840℃-875℃, keep the appropriate time to allow the steel to be fully heated, soak for 10-15 minutes per 25mm section, and then quench in oil, water, or polymer as needed.

tempering should be carried out immediately after quenching.

tempering

typically din 1.7225 alloy material is tempered to relieve stress during hardening, but mainly to obtain the required hardness and mechanical properties.

the actual tempering temperature will be selected according to the required properties.

1.7225 is carefully heated to a suitable temperature, usually between 550℃-700℃, soaked for 2 hours per 25mm score section at this temperature, and then cooled in air.

tempering between 250℃-375℃ is unavoidable, and tempering in this range will seriously reduce the impact value and cause temper brittleness.

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