MATERIAL INTRODUCTION
S50C Carbon Steel Strip
Medium-high carbon steel strip, magnetic, density: 7.85 g/cm³.
- Grade
- S50C
- Thickness
- 0.08–3.0 mm
- Width
- 2 mm
Chemical Composition (wt%)
| C | Si | Mn | P | S |
|---|---|---|---|---|
| 0.47～0.53 | 0.15～0.35 | 0.60～0.90 | ≤0.030 | ≤0.035 |
Applicable Standards
| Standard / Designation |
|---|
| JIS G4051 |
| GB/T 699 |
| ASTM A108 (1050) |
| EN 10083-2 (C50 / 1.0540) |
Tempers & Hardness
| Temper | Hardness / Characteristics |
|---|---|
| ANN (Annealed, Soft Temper) | HV ≤210, fair ductility for bending and stamping |
| 1/4H | 220–250 HV |
| 1/2H | 250–290 HV |
| 3/4H | 290–330 HV |
| FH (Full Hard) | ≥330 HV |
(as-supplied)
Note: Hardenable by quenching & tempering, achievable HRC42～52. Higher strength and wear resistance than S45C, slightly lower toughness. Poor rust resistance; anti-corrosion coating (black oxide, phosphating, plating) is mandatory.
Common Surface Finishes
| Surface | Description / Applications |
|---|---|
| 2B cold rolled bright finish | clean surface, ideal for precision stamping |
| Pickled finish | low cost for general usage |
| Ground bright finish | for high-precision components |
Size Range & Precision Slitting (Edge trimming and deburring)
0.08–3.0 mmThickness
2 mmWidth
±0.002 mmTight tolerance available
Can be slit and precision cut per drawings. Please confirm required dimensions and achievable tolerances with your inquiry.
Material Features
- Medium-high carbon steel without Cr/Ni, low cost. Higher carbon than S45C, better strength & wear resistance after heat treatment
- Very poor corrosion resistance, prone to rust in humid environment, surface protection required
- Good machinability; weldability worse than S45C, higher cracking risk during welding
- Higher work-hardening rate than S45C, limited hardenability, suitable for thin-gauge heat treatment
Applications
Wear-resistant shims, high-load precision stamping parts, gear blanks, clock springs, clutch springs, blade blanks, mold back plates, automation fixtures, wear bushes
Material Comparison
| Grade | Key Characteristics |
|---|---|
| S50C | Higher carbon than S45C, better hardness & wear resistance after tempering, lower toughness |
| S45C | Lower carbon, better toughness and weldability than S50C |
| 410 | Martensitic stainless, heat-treatable, better corrosion resistance than carbon steel |
| 420 | Martensitic stainless, higher quenched hardness, for cutting edge |