C50, 1.0540, C50E, 1.1206, AISI 1050 - carbon structural steel acc. to EN 10083-2.
Table of content:
| 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
Replacements, equivalents and other 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