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SCM440 CHROME MOLYBDENUM
STEEL BAR (RED CROSS)
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| REMARK
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External Diameter
Accuracy ¡G
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f 8 |
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Surface Roughness
¡G
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Ra0.2 £gm ~Ra0.4 £gm |
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Hard Chrome Thickness
¡G
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20Micron ¡Ó10% |
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Surface Hardness
¡G
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HV 850(Minimum)up |
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Standard Length ¡G
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3M-6M |
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Standard Size ¡G
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10 ~200 |
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Material ¡G
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JIS G4105(SCM440)¡BSAE4140¡BDIN17204 |
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| Purpose : |
| Operation for auto parts,
injection machine, hydraulic machine,
tie bars. |
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Symbol
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Chemical Analysis
(%)
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EQUIVALENT
AISI No.
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C
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Si
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Mn
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P
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S
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Ni
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Cr
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Mo
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SCM440
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0.38-0.43
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0.15-0.35
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0.60-0.85
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¡Ø0.030
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¡Ø0.030
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¡Ð
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0.90-1.20
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0.15-0.30
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4140
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