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Home Material JIS G 4801-1984
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Grade SUP12
Corresponding Standard JIS G 4801-1984
Spring steels
Classification Spring Steel
Properties Elasticity
SUP12 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu
Minimum Value 0.51 1.2 0.6 - - 0.6 -
Maximum Value 0.59 1.6 0.9 0.035 0.035 0.9 0.3
1 Approximate Comparison Table
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
55SiCrA A21553 SUP12 SUP12 SPS8 9254 G92540 55SiCr6-3 54SiCr6 1.7102 54SiCr6
(55S7) 		55С2 54SiCr6
2 Approximate Comparison Table
China Japan United States Germany France Russia
GB JIS ASTM DIN EN/DIN W-Nr. NF EN/NF GOST
60Si2CrA SUP12 9254 60SiCr7 1.0961 60SC7 60С2Ф2А
SUP12 Corresponding Standards(Same grade name, different standards)
1 JIS G 4801-2005
SUP12
2 JIS G 4801-1984
SUP12

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