EN 10084 18CrMo4 Introduce
EN 10084 18CrMo4 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:1882°C - 1896°C
Application:Case hardening steels - Technical delivery conditions
EN 10084 18CrMo4 Material Chemical Composition
The chemical composition of the EN 10084 18CrMo4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.3000 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Molybdenum (Mo) | 0.1500 | 0.2500 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.1500 | 0.2100 |
| Silicon (Si) | - | 0.4000 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0250 |
| Molybdenum (Mo) | 0.1500 | 0.2500 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.1500 | 0.2100 |
EN 10084 18CrMo4 Material Mechanical Properties
The mechanical properties of the EN 10084 18CrMo4 steel are as follows:
| YieldRp0.2 | ≤ 419 (MPa) |
| TeileRm | ≤ 411 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 11% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 123 |
EN 10084 18CrMo4 Material Thermal Properties
The thermal performance parameters of the EN 10084 18CrMo4 steel are as follows:
| Temperature (°C) | 31 | 761 | 399 |
| Modulus of elasticity (GPa) | - | 691 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 142 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 123 |
| Poisson’s coefficient, ν | - | - | 424 |