S50C is also a common steel grade with wide application. It’s similar to S45C carbon steel, no matter in properties or in applications. But customers in different area will have different habit for S45C or S50C. Besides, the cost and price for both S45C and S50C steels are just little different. You could just choose either for your own applications.
1. S50C Carbon Steel is steel grade in standard JIS G4051
JIS S50C Steel Grade is one steel grade material in JIS G4051, which is standard specification of carbon steels for machine structural use, such as hot rolling or hot forging tool steels.
2. JIS S50C Carbon Steel Supply Range
S50C steel is suitable for shafts studs, keys etc. and S50C steel materials are vailable as rolled or normalized delivery condition as per different customer requirements. We are professional JIS S50C machinery steel supplier and manufacturer. We are able to supply steel square bar, or S50C round steel bar or s50c steel flat, as below range:
- JIS S50C Steel Round Bar: 8mm-1600mm
- S50C Steel Cold Drawn Bar: 5mm-70mm
- S50C Steel Plate: 10-1500mm x 200-3000mm
3. JIS S50C Carbon Steel Equivalents
There are some other steel standards and steel grades similar and equivalent to JIS S50C Carbon Steel Grade, as shown below:
4. S50C Carbon Steel Properties
Steel S50C Chemical Composition
| Standard | Grade | C | Mn | P | S | Si |
| JIS G4051 | S50C | 0.47-0.53 | 0.60-0.90 | 0.030 | 0.035 | 0.15-0.35 |
JIS S50C Steel Mechanical Properties
| Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation Ration (%) |
Reduction of area Psi(%) |
Impact merit
AKV (J) |
Resilient value AKV(J/cm2) |
Hardness | Annealed |
| ≥630 | ≥375 | ≥14 | ≥40 | ≥31 | ≥39 | ≤235HB | ≤207HB |
5. JIS S50C Carbon Steel Hardness
- Annealed, 179-235 HB
- Tempered, 16-29 HRC
6. Heat Treatment of JIS S50C Steel
JIS S50C Steel materials could be hardened by water quenching at 810-860 degree, and tempered by rapid quenching 550-650 degree
7. Application of JIS S45C Carbon Steel Materials
JIS S50C grade carbon steel is widely used in machinery manufacturing, good mechanical properties of this steel.
S50C carbon steel are generally use to make mechanical parts, like spring, gear, tension bar, the roller, the axis, the load spindle etc.
