C50, 1.0540, C50E, 1.1206 - carbon steel
C50, 1.0540, C50E, 1.1206, AISI 1050 - carbon structural steel acc. to EN 10083-2.
| Standard | Grade | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical composition % | |||||||||||||||
| C: | Si: | Mn: | P: | S: | Cr: | Mo: | Ni: | ||||||||
| EN | C50 / 1.0540 | ||||||||||||||
| 0.47-0.55 | 0.17-0.37 | 0.42-0.50 | <0.03 | <0.035 | <0.4 | <0.1 | <0.4 | ||||||||
| EN | C50E / 1.1206 | ||||||||||||||
| 0.47-0.55 | <0.4 | 0.6-0.9 | <0.03 | <0.035 | <0.4 | <0.1 | <0.4 | ||||||||
| NF | XC50 | ||||||||||||||
| 0.46-0.52 | 0.15-0.35 | 0.5-0.8 | <0.035 | <0.025 | - | - | - | ||||||||
| DIN | Ck53 / 1.1210 | ||||||||||||||
| 0.50-0.57 | <0.4 | 0.6-0.9 | <0.035 | <0.035 | - | - | - | ||||||||
| BS | 080M50 | ||||||||||||||
| 0.45-0.55 | 0.1-0.4 | 0.6-1.0 | <0.05 | <0.015-0.050 | - | - | - | ||||||||
| JIS | S50C | ||||||||||||||
| 0.47-0.53 | 0.15-0.35 | 0.6-0.9 | <0.03 | <0.035 | <0.2 | - | <0.2 | ||||||||
| STAS | OLC50X | ||||||||||||||
| 0.47-0.55 | 0.17-0.37 | 0.6-0.9 | <0.035 | <0.035 | - | - | - | ||||||||
| ASTM | AISI 1050 / UNS G10500 | ||||||||||||||
| 0.48-0.55 | - | 0.6-0.9 | <0.04 | <0.05 | - | - | - | ||||||||
C50, 1.0540, C50E, 1.1206 - description
Non-alloy toughening machine steel, strong and sufficiently ductile, used in both normalized and toughened condition, as well as case-hardened condition, for wear-resistant machine parts (gears, rollers, shafts, axles, rims, wheels).
In soft annealed condition it is machinable and in normalized and soft annealed condition - shearable.
Physical and mechanical properties
- General properties:
- In induction hardened condition (+QT): > 56 HRC
- In improved shearability condition (+S): < 255 HBW
- In soft annealed condition (+A): < 217 HBW
- Mechanical properties of bars in normalized condition (+N):
- Diameter: <16 mm
- Tensile strength Rm: > 650 MPa
- Yield strength Re: > 355 MPa
- Elongation A: > 13 %
- Diameter: 16-100 mm
- Rm: > 610 MPa
- Re: > 320 MPa
- A: > 14 %
- Diameter: > 100 mm
- Rm: > 590 MPa
- Re: > 290 MPa
- A: > 14 %
- Diameter: <16 mm
- Mechanical properties of bars in toughened condition (+QT):
- Diameter: <16 mm
- Rm: 750-900 MPa
- Re: > 520 MPa
- A: > 13 %
- Percent reduction of area Z: > 30 %
- Thickness: 16-40 mm
- Rm: 700-850 MPa
- Re: > 460 MPa
- A: > 15 %
- Percent reduction of area Z: > 35 %
- Thickness: > 40 mm
- Rm: 650-800 MPa
- Re: > 400 MPa
- A: > 16 %
- Percent reduction of area Z: > 40 %
- Diameter: <16 mm
- Mechanical properties of flat products in toughened condition (+QT):
- Thickness: <8 mm
- Rm: 750-900 MPa
- Re: > 520 MPa
- A: > 13 %
- Percent reduction of area Z: > 30 %
- Thickness: 8-20 mm
- Rm: 700-850 MPa
- Re: > 460 MPa
- A: > 15 %
- Percent reduction of area Z: > 35 %
- Thickness: > 20 mm
- Rm: 650-800 MPa
- Re: > 400 MPa
- A: > 16 %
- Percent reduction of area Z: > 40 %
- Thickness: <8 mm
Heat treatment and working
Recommended working and heat treatment parameters for C50E alloy:
- Forging and rolling: 1050-800 °C
- Quenching: 810-850 °C
- Tempering: 550-660 °C
- Normalizing annealing: 830-870 °C
- Soft annealing: 650-700 °C
We deliver this steel alloy as:
- Bars
- Forgings
- Coldrolled Strips
Substitutes, equivalents and other species designations
C50E
AISI 1050
UNS G10500
OLC 50X
SM 53C
S50C
080M50
Ck53
Ck50
Cf53
XC50
C50R
C50
50
C50E
1.0540
1.1206
1.1241
1.1210
2C50
C5-C5F
C5
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