Chemical Composition
|
Grade
|
（Carbon Steel）Chemical Composition (mass fraction) %
|
||||||
|
C
|
Si
|
Mn |
P
|
S
|
Alt
|
Others
|
|
| 50 |
0.47～0.55
|
0.17～0.37
|
0.50～0.80
|
≤0.030
|
≤0.030
|
- |
Cu≤0.25, Ni≤0.30, Cr≤0.20, N≤0.008
If the supplier can guarantee it, no analysis will be carried out) |
Physical Properties
|
Grade
|
Yield Strength
(MPa) |
Tensile Strength (MPa)
|
Elongation A80mm %
|
Reduction of Area %
|
Impact Force
(J) |
Impact Toughness Value (J/cm²)
|
Hardness:
Untempered |
Hardness:
Annealing Treatment |
| 50 |
≥375
|
≥630
|
≥14
|
≥40
|
≥31
|
≥39
|
≤ 241HB
|
≤ 207HB
|
Corresponding Standards and Similar Grade Comparison
|
ASTM
|
BS
|
NF
|
DIN
|
JIS
|
GB
|
|
1050
|
060A52
|
XC48TS
|
CK53
|
S50C
|
50 |
Characteristics
- High Tensile Strength: Offers superior strength for demanding applications.
- Wear Resistant: Excellent for parts subject to abrasion.
- Heat Treatable: Allows for property enhancement through thermal processes.
- Spring Steel: Used for critical spring applications.
- Versatile: Ideal for mechanical components and heavy-duty fasteners.