Carbon Steels
Carbon steel – Steel combined with varying amounts of carbon. Has no specified minimum quantity for any alloying element (other than the commonly accepted amounts of manganese, silicon, and copper) and contains only an incidental amount of any element other than carbon, silicon, manganese, copper, sulfur, and phosphorus
Carbon steel is one of the most commonly used steel types in manufacturing due to its strength, affordability, and versatility. The properties of carbon steel vary depending on the carbon content, which directly influences hardness, ductility, and tensile strength. It is widely used in construction, automotive parts, pipelines, structural components, and general engineering applications where durability and cost-effective performance are required.
- High Strength
- Cost Effective
- Easy Fabrication
- Structural Use
- Good Machinability
- Durable Performance
CHEMICAL COMPOSITION
Precise Chemical Composition for Superior Performance
| Grade | C | Mn | Si | S (max) | P (max) | Cr | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| EN 1A | 0.07–0.15 | 0.80–1.20 | 0.10 max | 0.20–0.30 | 0.070 | – | – | – | – |
| CL II | 0.15–0.23 | – | 0.40 max | 0.040 | 0.045 | – | – | – | – |
| EN 8 | 0.35–0.45 | 0.60–1.00 | 0.10–0.35 | 0.050 | 0.050 | – | – | – | – |
| C45 | 0.42–0.48 | 0.60–1.00 | 0.10–0.35 | 0.050 | 0.050 | – | – | – | – |
| EN 9 | 0.50–0.60 | 0.50–0.80 | 0.05–0.35 | 0.040 | 0.040 | – | – | – | – |
| EN 19 | 0.35–0.45 | 0.50–0.80 | 0.10–0.35 | 0.040 | 0.040 | 0.90–1.40 | – | 0.20–0.40 | – |
| SAE 4340 / EN 24 | 0.35–0.45 | 0.45–0.70 | 0.10–0.35 | 0.040 | 0.040 | 0.90–1.40 | 1.30–1.80 | 0.20–0.35 | – |
| EN 31 | 0.90–1.20 | 0.30–0.75 | 0.10–0.35 | 0.040 | 0.040 | 1.00–1.60 | – | – | – |
| EN 36C | 0.12–0.18 | 0.30–0.60 | 0.10–0.35 | 0.040 | 0.040 | 0.60–1.10 | 3.00–3.75 | 0.10–0.25 | – |
| EN 353 | 0.20 max | 0.50–1.00 | 0.35 max | 0.040 | 0.040 | 0.75–1.25 | 1.00–1.50 | 0.08–0.15 | – |
| EN355 / 17CrNiMo6 | 0.20 max | 0.40–0.70 | 0.35 max | 0.030 | 0.030 | 1.40–1.70 | 1.80–2.20 | 0.15–0.25 | – |
| 16MnCr5 | 0.14–0.19 | 1.00–1.30 | 0.15–0.40 | 0.035 | 0.035 | 0.80–1.10 | – | – | – |
| 20MnCr5 | 0.17–0.22 | 1.10–1.40 | 0.10–0.35 | 0.035 | 0.035 | 1.00–1.30 | – | – | – |
| SAE 4140 | 0.38–0.43 | 0.75–1.00 | 0.20–0.35 | 0.035 | 0.035 | 0.80–1.10 | – | 0.15–0.25 | – |
| SAE 8620 | 0.18–0.23 | 0.70–0.90 | 0.20–0.35 | 0.040 | 0.040 | 0.40–0.60 | 0.40–0.70 | 0.15–0.25 | – |
| SAE 8640 | 0.37–0.44 | 0.70–1.05 | 0.15–0.30 | 0.040 | 0.040 | 0.35–0.65 | 0.35–0.75 | 0.15–0.25 | – |
| SAE 52100 | 0.95–1.10 | 0.25–0.40 | 0.20–0.35 | 0.025 | 0.025 | 1.30–1.60 | – | – | – |
| ASTM 105 | 0.20–0.25 | 0.90–1.00 | 0.15–0.35 | 0.040 | 0.040 | – | – | – | – |
| M2 (HSS) | 0.78–0.88 | 0.20–0.40 | 0.20–0.40 | 0.025 | 0.025 | 3.75–4.50 | – | 4.50–5.50 | 1.6–2.2 |
| D2 | 1.40–1.60 | 0.20–0.50 | 0.10–0.80 | 0.035 | 0.035 | 11–13 | 0.30 | 1.00 | 0.5–1.1 |
| D3 | 2.00–2.30 | 0.25–0.50 | 0.35 max | 0.035 | 0.035 | 11–12 | 0.30 | – | 0.10–0.30 |
| H11 | 0.30–0.40 | 0.25–0.50 | 0.80–1.20 | 0.035 | 0.035 | 4.70–5.25 | 0.30 | 1.20–1.60 | 0.30–0.60 |
| H13 | 0.30–0.40 | 0.20–0.50 | 0.80–1.20 | 0.035 | 0.035 | 4.50–5.50 | 0.30 | 1.20–1.70 | 0.80–1.20 |
| F11 | 0.10–0.15 | 0.30–0.80 | 0.50–1.00 | 0.035 | 0.035 | 1.00–1.50 | – | 0.44–0.65 | – |
| F22 | 0.15 max | 0.30–0.60 | 0.50 max | 0.035 | 0.035 | 2.00–2.50 | – | 0.87–1.13 | – |
