EN 10084 28Cr4 Introduce
EN 10084 28Cr4 steel is a high-carbon alloy steel with a carbon content ranging from 0.60% to 1.50%. This steel is primarily used in the automotive, agricultural and construction industries due to its useful properties. These properties include a high strength-to-weight ratio, excellent corrosion resistance and superior heat treatability. It is also hypoallergenic and non-toxic.
Smelting temperature:1373°C - 1127°C
Application:Case hardening steels - Technical delivery conditions
EN 10084 28Cr4 Material Mechanical Properties
The mechanical properties of the EN 10084 28Cr4 steel are as follows:
| YieldRp0.2 | ≤ 582 (MPa) |
| TeileRm | ≤ 425 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 311 |
EN 10084 28Cr4 Material Thermal Properties
The thermal performance parameters of the EN 10084 28Cr4 steel are as follows:
| Temperature (°C) | 33 | 446 | 957 |
| Modulus of elasticity (GPa) | - | 379 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 241 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.21 | - | - |
| Deity (kg/dm³) | - | - | 433 |
| Poisson’s coefficient, ν | - | - | 122 |