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Home Material JIS G 4801-2005
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Grade SUP 7
Corresponding Standard JIS G 4801-2005
Spring Steels
Classification Spring Steel
SUP 7 Chemical Element Composition Content (%)
Component C Si Mn P S Cu
Minimum Value 0.56 1.5 0.7 - - -
Maximum Value 0.64 2.2 1 0.03 0.03 0.3
1 Approximate Comparison Table Spring Steel
Taiwan, China Japan South Korea Germany Russia United Kingdom
CNS JIS KS DIN EN/DIN W-Nr. GOST BS EN/BS
SUP7 SUP7 SPS4 65Si7 1.0906 250А61 65Si7
2 Approximate Comparison Table Spring Steel 1
China Japan Russia
GB JIS GOST
60Si2MnA SUP7 60СГА
SUP7 Corresponding Standards(Same grade name, different standards)
1 JIS G 4801-2005
SUP 7
2 JIS G 4801-1984
SUP 7

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