High-strength alloy steel with excellent wear resistance and core toughness. Widely used for gears, shafts, and automotive components requiring case hardening.
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.17 max |
| Silicon (Si) | 0.15 – 0.35 |
| Manganese (Mn) | 0.60 – 0.90 |
| Chromium (Cr) | 0.85 – 1.15 |
| Molybdenum (Mo) | 0.08 – 0.15 |
| Nickel (Ni) | 1.00 – 1.50 |
| Phosphorus (P) | 0.035 max |
| Sulphur (S) | 0.035 max |
Typical properties after heat treatment
800 – 1000 MPa
600 MPa (min)
12 % (min)
240 – 380 HB
General guidelines for forging and heat treatment processes
Common industrial applications for EN353 high tensile steel
Gears, camshafts, and pinions requiring excellent wear resistance.
Axles and driveshafts for automotive and heavy machinery.
Load-bearing components and specialized tooling subjected to high stress.