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how to choose the right hardness to meet the quenched and tempered steel 's application

Quenching and Tempered is a process of heat treatment,which is used to increase the toughness of steel,tempering is often performed after hardening,to decrease somehing excess hardness.and the hardness is from the temperature control,various application is based on the hardness,for instance,the rolling shutter spring is usually required 44-48hrc,and hand building tools is need to be 48-52hrc.

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Hardened and tempered steel stripRolling shutter spring steel stripBand saw balde steel stripsNarrow steel stripWood/ meat cutting band saw bladeHigh tensile steel strapping

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