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AISI
American Iron and Steel Institute		 1025
SAE
Steel Number		 1025
Classification Carbon Steel
Chemical Element Composition Content (%)
Component C Mn P S
Minimum Value 0.22 0.3 - -
Maximum Value 0.28 0.6 0.03 0.05
1 Approximate Comparison Table High-Quality Carbon Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
25 U20252 S25C S25C SM25C 1025 G10250 C25E4 C25E
Ck25 		1.1158 C25E
XC25 		25 C25E
070M26
2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States
YB GB JIS ASTM
QML25 ML25 SWRCH25K 1025

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