EN 10083-1 30CrNiMo8 Introduce
The European Union (EU) has a history of enacting strict technical standards in order to ensure a high level of quality in goods and services produced by EU member states. EN 10083-1 30CrNiMo8 is the result of this type of standards-making, originating in the late 1950s as the standardization of dimensions, tolerances, and processing of steel rolled on hot or cold-reducing mills. These mills roll hot or cold steel into various shapes and sizes, and the EN 10083-1 30CrNiMo8 standard effectively outlined how to ensure a consistent and useful result.
Smelting temperature:1118°C - 1412°C
Application:Quenched and tempered steel - Part 1: General delivery technical conditions
EN 10083-1 30CrNiMo8 Material Chemical Composition
The chemical composition of the EN 10083-1 30CrNiMo8 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.4000 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | 1.8000 | 2.2000 |
| Molybdenum (Mo) | 0.3000 | 0.5000 |
| Manganese (Mn) | 0.3000 | 0.6000 |
| Chromium (Cr) | 1.8000 | 2.2000 |
| Carbon (C) | 0.2600 | 0.3400 |
| Manganese (Mn) | 0.5000 | 0.8000 |
EN 10083-1 30CrNiMo8 Material Mechanical Properties
Ductility is the ability of a material to deform without breaking or cracking during application of stress. EN 10083-1 30CrNiMo8 steel has an excellent ductility of 30-40% which makes it suitable for use in components requiring significant plastic deformation such as car bodies or bridges. This basically means that the steel can be bent or molded into the desired shape without the risk of cracking.
The mechanical properties of the EN 10083-1 30CrNiMo8 steel are as follows:
| YieldRp0.2 | ≤ 878 (MPa) |
| TeileRm | ≤ 567 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 322 |
EN 10083-1 30CrNiMo8 Material Thermal Properties
The thermal performance parameters of the EN 10083-1 30CrNiMo8 steel are as follows:
| Temperature (°C) | 21 | 179 | 697 |
| Modulus of elasticity (GPa) | - | 245 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 14 |
| Thermal conductivity (W/m·°C) | - | 23.3 | 44.2 |
| Specific thermal capacity (J/kg·°C) | - | 231 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 241 |
| Poisson’s coefficient, ν | - | - | 244 |
EN 10083-1 30CrNiMo8 Material Machining Technology
The first step in machining EN 10083-1 30CrNiMo8 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.