EN 10083-1 34CrMo4 Introduce
EN 10083-1 34CrMo4 is a family of European standards that specify the requirements and properties of high-grade alloy steels. These steels are alloys of elements like carbon, silicon, and manganese, and are often used in the production of tools, springs, and high-strength aerospace components.
Smelting temperature:1594°C - 1227°C
Application:Quenched and tempered steel - Part 1: General delivery technical conditions
EN 10083-1 34CrMo4 Material Chemical Composition
The chemical composition of the EN 10083-1 34CrMo4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.3000 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Molybdenum (Mo) | 0.1500 | 0.3000 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | 0.9000 | 1.2000 |
| Carbon (C) | 0.3000 | 0.3700 |
EN 10083-1 34CrMo4 Material Mechanical Properties
Fatigue is a measure of the material's ability to withstand cyclic loading without failure. EN 10083-1 34CrMo4 steel has an excellent fatigue strength of 125-175 MPa at 1000 cycles which makes it suitable for use in components that are exposed to high frequency and vibration such as gears or shafts. The high fatigue strength can also provide longer life expectancy for these components.
The mechanical properties of the EN 10083-1 34CrMo4 steel are as follows:
| YieldRp0.2 | ≤ 185 (MPa) |
| TeileRm | ≤ 276 (MPa) |
| ImpactKV/Ku | 44(J) |
| ElongationA | 41% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 331 |
EN 10083-1 34CrMo4 Material Thermal Properties
The thermal performance parameters of the EN 10083-1 34CrMo4 steel are as follows:
| Temperature (°C) | 24 | 214 | 456 |
| Modulus of elasticity (GPa) | - | 935 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 223 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 321 |
EN 10083-1 34CrMo4 Material Machining Technology
The first step in machining EN 10083-1 34CrMo4 steel is selecting the most appropriate tool for the job. For most projects, a high-speed steel drill bit is recommended. This type of bit is designed to withstand the extreme heat and pressure generated during the machining process. However, if a greater degree of accuracy is required, other materials such as ceramics, cermets, or diamond-coated bits may be used.