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SUS440C 18Cr-1C
SUS440C 18Cr-1C enjoys highest hardness in all heat-resistant stainless steel, it is mainly used in nozzle, bearings etc. EJP (SUS440C): SUS440C is JIS Martensitic stainless steel.
Rich composition of 18Cr-1C, other ingredients: C-0.95 ~ 1.2 , Si/Mn less than 1.0 , P less than 0.04 , S less than 0.03 , Cr about 16 ~ 18.
General standard:
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JIS
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ASTM
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AISI/SAE
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DIN
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GB
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SUS 440C
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S44004
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440
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X105CrMo17
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9Cr18Mo
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Chemical composition: (Unit: wt%)
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JIS
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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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Cr
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Ni
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Mo
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SUS 440C
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0.95-1.20
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1
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1
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0.04
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0.03
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16.0～18.0
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≤0.6
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≤0.75
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Characteristics:
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JIS
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HRB(max)
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Hv(max)
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Feasibility of Heat Treatment
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SUS 440C
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HRC>58
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>660
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Yes
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