EN36C
EN36C Grade Introduction:
EN36C Alloy Steel is a Nickel-Chromium Case hardening steel which is suitable for deep hardening to develop a touch core is suitable for gears, cams rollers available in diameters only. EN36C Alloy Steel is a carburizing steel grade with very high surface strength with a soft but strong core. The material retains a remarkable degree of toughness. With high tensile strength, EN36C is used in the production of numerous high-strength parts including crankshafts in the automotive and aerospace sector. En36C is used specifically in heavy-duty and highly stressed applications due to its hardenability toughness and high core strength. EN36C also offers excellent fatigue resistance. EN36C gives a hard case with a strong core, whilst retaining a remarkable degree of toughness.
EN36C Grade Application:
- Suitable for roller and ball bearings of an extra light section
- Ideal for airplane and motor crankshafts requiring hard surfaces for roller paths
- Used for connecting rods with case-hardened ends
- Suitable for highly stressed gudgeon pins
- Applicable for gears
- Suitable for certain types of collets
EN36C Equivalent Grades:
| Standard |
Specification |
| BS 970:1991 |
655M13 |
| BS 970:1955 EN |
EN36 |
| AISI/SAE |
3415 |
| WERKSOFF |
1.5752 |
EN36C Chemical Composition:
| Element |
C |
Mn |
Si |
Ni |
Mo |
Cr |
S |
P |
| Content (%) |
0.12-0.18 |
0.30-0.60 |
0.10-0.35 |
3.00-3.75 |
0.10-0.25 |
0.60-1.10 |
0.05 Max |
0.05 Max |
Mechanical Properties:
| Property |
Tensile Strength N/mm² |
Elongation % |
Impact Izod J |
Impact KCV J |
Hardness HB |
Reduction of Area % |
| Value |
1100 |
15 |
40 |
35 |
341 |
50 |
Physical Properties:
| DENSITY (G/CM 3) |
8.08 |
| DENSITY (LB/IN 3) |
0.292 |
| MELTING POINT (°C) |
1425 |
| MELTING POINT (°F) |
2600 |
Thermal Properties:
| Property |
Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/°C between 20°C |
Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
| Value |
13 |
– |
– |
|
|
0.23 |
– |
|
| Value |
697 |
912 |
– |
32.3 |
333 |
|
– |
|
| Value |
634 |
– |
44 |
21.2 |
|
|
141 |
213 |
Forging Properties:
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.
Stress Relieving:
Heat to 600°C – 650°C, Cool in still air.