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.
GB/T3077 40Cr alloy steel plate Size we can supply:
Thickness： 3-250mm
Width： 1220-4200mm
Length: 5000-18000mm
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40Cr Chemical Composition
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Grade
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The Element Max (%)
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C
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Si
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Mn
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Cr
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Mo
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40Cr
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0.37-0.44
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0.17-0.37
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0.50-0.80
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0.80-1.10
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Ni
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V
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W
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B
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Ti
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Grade
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40Cr Mechanical Property
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Thickness
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Yield
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Tensile
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HB
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40Cr
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mm
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Min Mpa
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Mpa
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HB
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6-50
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785
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980
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207
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50-200
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785
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980
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207
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GB 40CR steel is widely used for a variety of applications in the used in the automotive and engineering industries for toolholders and other such components. Typical applications such as valve bodies, pumps and fittings, Shaft, the high load of wheel, bolts, double-headed bolts, gears, etc.
GB/T3077 40Cr alloy steel plate is China's standard,which has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity After quenching and tempering. BBN Steel is the GB/T3077 40Cr alloy steel plate famous manufacturer,we have a long story in supplying GB/T3077 40Cr alloy steel plate,welcome to your inquiry.
