Brand:xinhairunda
Quantity:100000
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Good performance steel, high hardenability, carburizing quenching with a hard and wear-resistant surface and tough core part, has a high low temperature impact toughness, welding of medium machinability after normalizing good. Chemical Composition:
C: 0.17~0.23
Si: 0.17~0.37
Mn: 0.80~1.10
S: = 0.035
P: = 0.035
Cr: 1.00~1.30
Ni: = 0.030
Cu: = 0.030
Ti: 0.04~0.10
Mechanical Properties:
Tensile strength sb (MPa): = 1080 (110)
Yield strength ss (MPa): = 835 (85)
Elongation d5 (%): = 10
Reduction of area ? (%): = 45
Impact energy Akv (J): = 55
Impact toughness akv (J/cm2): = 69 (7)
Hardness: = 217HB
