Grade
C4C
European Standard Steel Grade
1.0303
Corresponding Standard
EN 10263-2-2001
Classification
Carbon Steel
Properties
Forgability
C4C Chemical Element Composition Content (%)
Component
C
Si
Mn
P
S
Al *
Minimum Value
0.02
-
0.25
-
-
0.02
Maximum Value
0.06
0.1
0.4
0.02
0.025
0.06
C4C Mechanical Properties
diameter
Tensile Strengthb Mpa
Reduction of Area%
5 < d ≤ 100 (+U or +U+PE)
≤390
≥70
5＜d≤100 (+AC or AC+PE)
≤330
≥75
5＜d≤10 (+U+C)
≤470
≥66
10＜d≤40 (+U+C)
≤460
≥66
2＜d≤5 (+U+C+AC)
≤320
≥77
5＜d≤10 (+U+C+AC)
≤310
≥77
10＜d≤40 (+U+C+AC)
≤300
≥77
5＜d≤10 (+U+C+AC+LC)
≤360
≥73
10＜d≤40 (+U+C+AC+LC)
≤350
≥73
5＜d≤10 (+AC+C)
≤410
≥70
10＜d≤40 (+AC+C)
≤400
≥70
1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
Japan
International Organization for Standardization
European Standard
JIS
ISO
EN
Numerical Grade
SWRCH6A
C2C C4C
C2C C4C
1.0314 1.0303
2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China
United States
International Organization for Standardization
European Standard
GB
ISC
ASTM
ISO
EN
Numerical Grade
ML04Al
U40048
1005
CC4A
C4C
1.0303
3 Approximate Comparison Table High-Quality Carbon Structural Steel
C4C Corresponding Standards(Same grade name, different standards)
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