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cheaper alloy steel aisi 4140 round bar

Description: AISI 4140 AISI 4140 Q+T Round Bar Sales Promotion after AISI alloy 4140 steel bar, plate and square can be hardened by cold working, or heating and quenching. SAE 4140 alloy steel is usually supplied ready heat treated to hardness in 1822 HRC. If further heat treatment is required, then heat to 840 oC – 875 oC, hold until temperature is uniform throughout the section, soak for 10 – 15 minutes

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