SAE J1268 Grade 4120H
Equivalent material: DIN 1.7216, DIN 30CrMo4, AFNOR 30CrMo4, BS 30CrMo4, AISI 4120H, JIS STH 21, JIS SCM430, EN 30CrMo4, EN 1.7216, GOST 30ChM, GOST 30ChMA, UNS H41200
SAE J1268 Grade 4120H general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Chromium Molybdenum Steel |
SAE J1268 Grade 4120H thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.1E-5 - 1.4E-5 1/K |
Typical for Chromium Molybdenum Steel |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium Molybdenum Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 448 - 502 J/(kg·K) |
Typical for Chromium Molybdenum Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 36 - 43 W/(m·K) |
Typical for Chromium Molybdenum Steel |
SAE J1268 Grade 4120H chemical
| Property |
Value |
| Carbon |
Carbon of 0.18 - 0.23 % |
| Chromium |
Chromium of 0.4 - 0.6 % |
| Copper |
Copper of 0.35 % |
| Iron |
balance |
| Manganese |
Manganese of 0.9 - 1.2 % |
| Molybdenum |
Molybdenum of 0.13 - 0.2 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
SAE J1268 Grade 4120H mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Chromium Molybdenum Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Molybdenum Steel |
Experience the innovative edge of our steel solutions, designed to meet evolving industry needs.
-- Our promise
Similar or equivalent steel materials
Get a quote