DIN 17212 45Cr2 Introduce
DIN 17212 45Cr2 is one of the few steel grades that provide excellent corrosion resistance and wear protection. The alloy has excellent corrosion resistance and is particularly resistant to both acidic and alkaline environments. Its excellent wear protection is attributed to the high strength and the formation of a thin protective surface layer which prevents the material from corroding or breaking down.
Smelting temperature:1277°C - 1424°C
Application:Flame and Induction Hardening Steels; Quality Specifications
DIN 17212 45Cr2 Material Chemical Composition
The chemical composition of the DIN 17212 45Cr2 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1500 | 0.4000 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0250 |
| Manganese (Mn) | 0.5000 | 0.8000 |
| Chromium (Cr) | 0.4000 | 0.6000 |
| Carbon (C) | 0.4200 | 0.4800 |
DIN 17212 45Cr2 Material Mechanical Properties
The physical properties of DIN 17212 45Cr2 steel depend on many factors, including its chemical composition and the way it is treated (in terms of heat treatment, etc.). Generally speaking, the steel has higher tensile strength and lower yield strength than similar low-carbon structural steels, leading to improved performance in a variety of industrial applications. For example, DIN 17212 45Cr2 steel is commonly used for axles, shafts and other parts that will be subjected to intense strain or stress. Its low carbon content also makes it an excellent choice for welded components as it minimizes the risk of shrinkage and other issues.
The mechanical properties of the DIN 17212 45Cr2 steel are as follows:
| YieldRp0.2 | ≤ 473 (MPa) |
| TeileRm | ≤ 927 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 31% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 324 |
DIN 17212 45Cr2 Material Thermal Properties
The thermal performance parameters of the DIN 17212 45Cr2 steel are as follows:
| Temperature (°C) | 14 | 475 | 549 |
| Modulus of elasticity (GPa) | - | 369 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 34 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 41.2 |
| Specific thermal capacity (J/kg·°C) | - | 314 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 422 |
| Poisson’s coefficient, ν | - | - | 221 |
DIN 17212 45Cr2 Material Machining Technology
The machining of DIN 17212 45Cr2 steel is an important step in the production of various types of components and tools. This steel is a special grade of steel that has been used in the production of a variety of components since the late 1930s. To produce the highest quality results, machining of DIN 17212 45Cr2 steel requires precise control and accuracy from the machinery and operator.