C10
1.0301Low-carbon unalloyed steel. Excellent weldability, good formability, and low hardness. Used for pins, rivets, bushings, case-hardened parts with thin case depth, and general cold-formed components. Can be case-hardened for surface wear resistance.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 1010 | G10100 | REF |
| 🇪🇺 | EN | Europe | C10 | 1.0301 | 100% |
| 🇯🇵 | JIS | Japan | S10C | — | 97% |
| 🇨🇳 | GB | China | 10 | — | 95% |
Sources: ASTM A29, EN 10083-2:2006, JIS G4051, GB/T 699
Chemical composition comparison (wt%)
Side-by-side: C10 (EN) (EN 10083-2:2006) vs S10C (JIS)
| Element | C10 (EN) | S10C (JIS) | Overlap |
|---|---|---|---|
| C | 0.07–0.13% | — | — |
| Si | 0–0.4% | — | — |
| Mn | 0.3–0.6% | — | — |
| P | 0–0.03% | — | — |
| S | 0–0.035% | — | — |
Mechanical properties
Normalized
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 340–470 | MPa |
| Yield Strength | ≥ 205 | MPa |
| Elongation | ≥ 24 | % |
| Elastic Modulus | ≥ 210 | GPa |
| Density | ≥ 7.85 | g/cm3 |
Heat treatment
| Process | Temperature | Medium | Holding Time | Notes |
|---|---|---|---|---|
| normalizing | 880–920 °C | air | min 2 min per mm | — |
| carburizing | 880–920 °C | — | Depends on case depth | Case hardening for surface wear resistance. Typical 0.3-0.5mm case depth |
| annealing | 650–700 °C | furnace | Several hours | Soft annealing |
Compatibility verdict
C10 and S10C: 97% composition match
Close equivalents but NOT identical.
Related materials
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S690QL
1.8928High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.
S275JR
1.0044Medium-strength structural steel with minimum yield strength of 275 MPa. Bridges the gap between S235JR and S355JR. Used for general structural applications, lattice towers, masts, and light crane components. Impact tested at +20°C (JR).
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