C45E unalloyed special steel, for quenching and tempering. It is a popular grade of steel, used in many industries. C45E steel is characterized by abrasion resistance and good wear resistance, making it ideal for the manufacture of parts requiring high strength and suitable for the production of parts that are subjected to heavy use and friction. The "E" designation indicates lower concentrations of sulfur and phosphorus compared to the C45 steel grade, so it exhibits greater metallurgical purity but slightly lower machinability. It is used for components subjected to medium operating loads. It is a material readily available on the market and relatively inexpensive compared to other steel grades with similar properties. Due to its carbon content, it is not a readily weldable steel.
Steel grade C45E+C
The additional designation "C" identifies C45E steel products hardened by cold-forming, such as cold-drawn.
C45E+C steel chemical composition
| Designation | C % max | Mn % max. | Si % max | Cr % max | P % max. | S % max. | Ni % max. | Mo % max. | |
|---|---|---|---|---|---|---|---|---|---|
| C45E+C | 1.1191 | 0,42 - 0,50 | 0,50 - 0,80 | 0,40 | 0,40 | 0,035 | 0,035 | 0,40 | 0,10 |
Steel C45E+C mechanical properties
| Steel | Mechanical properties | |||||
|---|---|---|---|---|---|---|
| Grade | Rp0.2 [MPa] | Rm [MPa] | HB | Strain % | Elongation % | Impact strength |
| C45E+C | 305 - 490 | 580 - 850 | ≤229 | 35 - 45 | ≥16 | ≥25J (-20°C) |
C45+C steel application
C45E+C steel is often used for machine parts, and is usually made for components such as:
- crankshafts, rotors, rollers, gears and axles, as well as various types of fasteners.
| EU EN | Steel number |
| C45E+C | 1.1191 |
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