C15 steel is a low-carbon unalloyed steel characterized by good weldability and ductility. It is widely used in the manufacture of machine components that are not subjected to high mechanical loads. Thanks to its low carbon content, C15 steel has good weldability and low hardness, and is easy to heat and machine, making it a versatile material for various industrial applications.
In addition to carbon, it also contains small amounts of other elements such as manganese, phosphorus and sulfur. C15 steel shows moderate tensile strength, but its main advantage is ductility and good machinability.
It can be subjected to heat treatment processes, such as quenching and tempering, to improve its mechanical properties, particularly strength and impact strength. In addition, parts made of C15 steel can be easily turned, milled and drilled. Parts made of this steel can be used in the temperature range from - 40 °С to +450 °С. It can be used for hardening and as a carburizing steel.
Steel C15 chemical composition
| Designation | C % max | Mn % max. | Si % max | P % max. | S % max. | Ni % max. | |
|---|---|---|---|---|---|---|---|
| C15 | 1.0401 | 0,12 - 0,18 | 0,35 - 0,65 | 0,17-0,37 | 0,040 | 0,040 | 0,30 |
Steel C15 mechanical properties
| Mechanical properties | ||
|---|---|---|
| Rp0,2 [MPa] | Rm [MPa] | Elongation % |
| ≥215 | 340-800 | 7-12 |
C15 steel applications
Due to its properties, C15 steel is often used for parts that do not need to carry heavy loads. It is often used in the production of parts such as:
- screws
- nuts
- pins
- axles
- mechanical parts exposed to low loads
Due to the easy machinability of this steel, it is also often used for turned parts and precision parts (shafts, pins).
| EU EN | Steel number | Sweden | AISI |
| C15 | 1.0401 | SS1350 | 1015 |
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