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GB 40CR alloy Steel is a high quality Quenched and Tempered Alloy Structural steel,It belong to the high quality low carbon,Low alloy chromium,molybdenum,nickel case hardening steel.Oil Quenched Tempered Hardness is 28-34 HRc.GB 40CR steel Annealing delivery hardenss less than 250HB.40CR With a lower carbon content range,So GB 40CR alloy steel have good weldability. 40Cr Steel40Cr Steel.(1) characteristics of carbon tool steel quenched and tempered steel,cold heading steel mold.The steel 40cr astm a29m sae5140 41cr4 scr440 steel round rodOTAI SPECIAL STEEL Supply in GB 40CR steel round bar,steel plate,sheet,square bar,flat bar,hexagonal Bar,pipe/tube since 2007.our steel stock more 1000tons GB 40CR alloy Steel is a high quality Quenched and Tempered Alloy Structural steel,It belong to the high quality low carbon,Low alloy chromium,molybdenum,nickel case hardening steel. 40Cr steel specification/alloy steel 41Cr4 SCr440 5140 40Cr steel specification/alloy steel 41Cr4 SCr440 5140,US $ 500 - 700 / Ton,Cr40 41Cr4

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