Grade 25
China ISC U20252
Other Names
Corresponding Standard GB /T 710-2008
Hot-Rolled Quality Carbon Structural Steel Sheets and Strips
Classification Carbon Steel
Properties Impact Toughness Forgability Weldability
25 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.22 0.17 0.5 - - - - -
Maximum Value 0.29 0.37 0.8 0.035 0.035 0.25 0.3 0.25
25 Mechanical Properties
form Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
Plates, Steel Strips S Hot Rolled Condition ≥450 ≥26
Plates, Steel Strips P Hot Rolled Condition ≥450 ≥24
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 Carbon Structural Steel and Engineering Steel
China Japan International Organization for Standardization
GB JIS ISO
25 S25C C25
3 Approximate Comparison Table Non-Alloy Steel for Quenching and Tempering
China Japan International Organization for Standardization European Standard
GB JIS ISO EN Numerical Grade
25 S25C C25E C22E 1.1151
4 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States International Organization for Standardization France Russia United Kingdom
GB JIS ASTM/AISI ISO NF EN/NF GOST BS EN/BS
GB/T 699-1999
25
S25C 1025 ISO 630-1:1987
C25
C25E4
C25M2
C25
XC25
25 060A25
070A26

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