C35 steel is a structural, unalloyed steel for tempering, which is widely used in the engineering and automotive industries. The basis for the classification of unalloyed steels is the chemical composition, particularly the carbon content. The designation consists of the letter "C" and a number equal to the average carbon concentration in hundredths of %.
It is a steel with an average carbon content, which allows it to achieve better mechanical properties after heat treatment, such as quenching and tempering (heat improvement). Thanks to its properties after heat treatment, C35 steel is a good material for producing parts subjected to medium and high mechanical loads.
A carbon content of 0.35% gives C35 steel adequate strength, while maintaining good ductility and limited weldability.
C35 steel has higher tensile strength and hardness compared to low-carbon steels, making it suitable for more demanding applications.
C35 steel is a versatile high-strength material that is ideal for the production of mechanical parts subjected to medium to heavy loads. Thanks to its properties and heat-treatability, C35 steel is widely used in the engineering and automotive industries, ensuring the durability and reliability of components.
C35 steel chemical composition
| Designation | C in % max | Mn % max. | Si % max | Cr % max | P % max. | S % max. | Ni % max. | Mo % max. | |
|---|---|---|---|---|---|---|---|---|---|
| C35 | 1.0501 | 0,32 - 0,39 | 0,50 - 0,80 | 0,40 | 0,40 | 0,045 | 0,045 | 0,40 | 0,10 |
Steel C35 mechanical properties
| Mechanical properties | ||||
|---|---|---|---|---|
| Condition | Rp0.2 [MPa] | Rm [MPa] | Elongation % | Elongation % |
| initial | ≥270 | ≥520 | ≥19 | - |
| tempered | 320-430 | 550-780 | ≥18 | ≥40 |
C35 steel applications
C35 steel is very often used for the production of elements supporting large structures, and is also widely used in the production of elements exposed to medium and heavy loads, such as:
- fasteners: bolts, nuts
- gears
- axles, shafts, cranks, connecting rods, levers, cylinders, piston rods, pins, wedges.
C35 steel is also used for surface hardening, which allows for hard and wear-resistant surfaces while maintaining a strong core.
| EU EN | Steel number | USA AISI | England |
| C35 | 1.0501 | 1035 | 080M36 |
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