Carbon steels form the foundation of industrial applications, offering a combination of good machinability, medium to high strength and competitive cost.
We maintain two main grades in stock — C45 and S355 — in round bars from Ø10 to Ø450 mm. CK60 is also available on order. All materials are supplied with EN 10204 3.1 certificates and ultrasonic testing.
| Grade | W.Nr. | Standard | %C | Application | Availability |
|---|---|---|---|---|---|
| C45 / CK45 | 1.0503 / 1.1191 | EN 10083-2 | 0.42–0.50 | Shafts, machine components | In stock |
| S355J2 / St52-3 | 1.0570 | EN 10025-2 | ≤ 0.22 | Structural & shipbuilding | In stock |
| CK60 | 1.1221 | EN 10083-2 | 0.57–0.65 | Springs, high-strength components | On order |
The most widely used carbon steel for shafts, machine components and general industrial constructions.
| Diameter | Re (MPa) | Rm (MPa) | A (%) | HB |
|---|---|---|---|---|
| ≤ Ø16 | 490 | 700–850 | 14 | 200–245 |
| Ø16–Ø40 | 430 | 650–800 | 16 | 190–235 |
| Ø40–Ø100 | 370 | 630–780 | 17 | 180–225 |
| Ø100–Ø250 | 320 | 600–750 | 18 | 170–215 |
Warehouse identification mark: Red / Blue
S355J2 (St52-3) is the standard structural steel for shipbuilding, bridges, industrial buildings and components requiring weldability. Grade J2 guarantees impact resistance of 27J at −20°C.
Identification mark: Red / Grey
C45: drive shafts, pins, bases, bolts, nuts — medium-load machine components.
S355: bridges, steel buildings, columns, beams, pressure vessels, shipbuilding structures.
CK60 (on order): springs, blades, friction and high-hardness components.
Both main grades are used in shipbuilding and ship repair depending on load requirements.
All main grades in immediate stock. Request a quotation with your required dimensions and quantities.