Reasons for the Poor Durability of H13 Shear Blades：
In common heat treatment standards, technical requirements often specify only the hardness range. To reduce costs, outsourced heat treatment providers frequently focus solely on meeting this hardness requirement. During the heat treatment process, if the heating temperature or soaking time is insufficient, the alloying elements in the tool steel cannot fully dissolve into the austenite. This results in an inadequate quenched and tempered microstructure, leading to defects such as edge deformation (collapsing) and loss of shape during service.
Ma'anshan Licheng Blade Manufactory
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