Grade 15
China ISC U20152
Corresponding Standard GB /T 699-2015
Quality Carbon Structure Steels
Classification Carbon Steel
Properties Machinability Weldability
Density 7.85 g/cm3
15 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.12 0.17 0.35 - - - - -
Maximum Value 0.18 0.37 0.65 0.035 0.035 0.25 0.3 0.25
15 Mechanical Properties
diameter(thickness)
d
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
d=25 (Sample size) Normalizing ≥375 ≥225 ≥27 ≥55 Unprocessed Steel
≤143
1 Approximate Comparison Table High-Quality Carbon Structural Steel
China Taiwan, China Japan South Korea United States Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS BS EN/BS
15 U20152 S15C S15C SM15C 1015 G10150 C15
Ck15
1.0401
1.1141
C12
XC15
15 1350
1370
040A15
080M15
2 Approximate Comparison Table High-Quality Carbon Structural Steel
China Germany France European Standard
GB DIN EN/DIN NF EN/NF EN Numerical Grade
15 C15
Ck15
XC12 C15 1.0401
3 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB JIS ASTM ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS BS EN/BS
15 S15C Gr.1015
Gr.1016
C15E4 C15
Ck15
1.1141 C18RR
XC12
XC15
C15E 1.1141 15 1370 040A15
080M15
CS17
4 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan United States France Russia United Kingdom
GB JIS ASTM/AISI NF EN/NF GOST BS EN/BS
15 S15C
S15CK
1015 C15
XC15
15 040A15
050A15
060A15
5 Approximate Comparison Table High-Quality Carbon Structural Steel
China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB JIS KS ASTM/AISI ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
15 S15C STKM12B 1015 C15E4 C15C 1.0234 C15C 15 C15C

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