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Home Material JIS G 4801-2005
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Grade SUP12
Corresponding Standard JIS G 4801-2005
Spring Steels
Brand/Supplier
Japan -> JFE Steel
-> POSCO
Classification Spring Steel
Properties Elasticity
SUP12 Chemical Element Composition Content (%)
  Component C Si Mn P ① S ① Cr Cu
本标准 Minimum Value 0.51 1.2 0.6 - - 0.6 -
Maximum Value 0.59 1.6 0.9 0.03 0.03 0.9 0.3
  Component C Si Mn P S Cr Cu
浦项 Minimum Value 0.51 1.2 0.6 - - 0.6 -
Maximum Value 0.59 1.6 0.8 0.03 0.03 0.9 0.3
1 Approximate Comparison Table Spring Steel
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 Spring Steel 1
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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