EN353
EN353 Grade Introduction:
EN353 Alloy steel is a very high strength steel alloy that is hardened and tempered before supplying and has nickel, chromium, molybdenum making its high tensile steel strength, with good ductility and wear resistance. With relatively good impact properties at low temperatures, EN353 is also suitable for a variety of elevated temperature applications. EN353 round bars have good internal strength and high external strength, which makes them highly wear-resistant. EN353 steel round bars offer a good combination of ductility, strength, and wear resistance. EN353 is a very high-strength alloy engineering steel.
EN353 Grade Application:
- Acceptable for many automobile applications such as:
- Heavy-duty gears
- Shafts
- Pinions
- Camshafts
- Gudgeon pins
EN353 Equivalent Grades:
| Standard |
Specification |
| BRITISH BS 970:1991 |
815M17 |
| BRITISH BS 970:1955 |
EN353 |
| German DIN |
20NiCrMo5 |
| French AFNOR |
20NCD5 |
| Swedish SS |
SS 2523 |
| European Steel Name |
17NiCrMoS6-4 |
| European Standard |
EN10277-4 |
EN353 Chemical Composition:
| Element |
C |
Si |
Mn |
S |
P |
Ch |
Mo |
Ni |
| Content (%) |
0.10-0.20 |
0.10-0.35 |
0.50-1.00 |
0.040 Max |
0.040 Max |
0.75-1.25 |
0.08-0.15 |
1.00-1.50 |
Mechanical Properties:
| Hardening |
840-870°C |
| Quenching |
Oil |
| Tempering |
150-200°C |
| Brinell Rockwell Hardness |
150-200 |
Physical Properties:
| Thermal Conductivity at °C |
20 |
350 |
700 |
| W/(m*K) |
11.3 |
13.3 |
14.5 |
Thermal Properties:
| Thermal Conductivity at °C |
20 |
350 |
700 |
| W/(m*K) |
11.3 |
13.3 |
14.5 |
Forging Properties:
EN353 steel round bars offer a good combination of ductility, strength, and wear resistance. EN353 is a very high-strength alloy engineering steel.
Stress Relieving:
150-200, cooled in the furnace.
1st pre-heating °C: Up to approx. 400 in an air-circulating furnace
2nd and 3rd: 780 and 805°C.