Steel Flat Bar 1.0503 / C45 / Ст45
Steel flat bar 1.0503 (C45 / Ст45) is a medium-hard carbon structural steel known for its high strength, good machinability, and moderate wear resistance. It is widely used in mechanical engineering, construction, and metalworking industries.
Technical Specifications
| Parameter | Value |
|---|---|
| Steel Grade | 1.0503 / C45 / Ст45 |
| Standard | EN 10083-2, DIN 17200, GOST 1050-88 |
| Tensile Strength, MPa | 600-800 |
| Yield Strength, MPa | ≥ 355 |
| Hardness (HB) after Heat Treatment | 170-210 |
| Operating Temperature Range, °C | -40 to +400 |
Chemical Composition (%)
| Element | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Content | 0.42-0.50 | 0.10-0.40 | 0.50-0.80 | ≤ 0.025 | ≤ 0.025 |
Mechanical Properties
| Property | Value |
|---|---|
| Impact Toughness, J/cm² (at 20°C) | ≥ 35 |
| Elongation, % | ≥ 14 |
| Elastic Modulus, GPa | 210 |
Applications
- Production of mechanical components (shafts, gears, axles)
- Structural construction
- Manufacturing of wear-resistant parts
- Production of fasteners
Advantages of C45 (1.0503) Steel
✅ High strength and hardness
✅ Good machinability (cutting, milling, drilling)
✅ Capability for hardening and tempering
✅ High resistance to impact loads
Steel flat bar 1.0503 (C45 / Ст45) is an optimal choice for components requiring increased strength and wear resistance under moderate temperatures.
Steel strip delivery form 1.0503 / st45
Steel circles | |
| Steel grades | Dimensions supplied (mm) |
| Steel strip 1.0503 / st45 | 20-90 : 205-605 |
