EN 1.0503 Material Steel C45
EN 10083-2 C45 (EN 1.0503) steel is a high-strength, medium-carbon quality steel. Due to low hardenability, C45 material is generally used under standard conditions, and when the mechanical properties must be high, quenching and tempering treatment is adopted. The plasticity of cold deformation is average, and the machinability of annealing and normalizing is better than that of quenching and tempering.
Properties and specifications of C45 steel
The table below provides the properties and specifications of C45 steel, including chemical composition, mechanical properties and heat treatment.
Chemical composition
Data Sheet 1, The following data sheet lists the chemical composition of C45 based on casting analysis.
| Chemical composition, % | ||||||||||
| Standard | Steel name (steel number) | W | Yes, ≤ | Mn | P, ≤ | S, ≤ | Cr, ≤ | Ni, ≤ | Mo, ≤ | Cr+Mo+Ni, ≤ |
| EN 10083-2 | C45 (1.0503) | 0.42-0.50 | 0.40 | 0.50-0.80 | 0.045 | 0.045 | 0.40 | 0.40 | 0.10 | 0.63 |
Mechanical properties
The following table provides the mechanical properties of C45 steel such as tensile strength, yield strength and hardness in quenched and tempered and normalized conditions.
Yield strength
Datasheet 2, Yield resistance in different diameters and conditions.
| Yield strength (MPa) | |||
| Steel (steel number) | MPa, ≥ | Diameter (d), Thickness | |
