EN 10083-3 30MnB5H Introduce
EN 10083-3 30MnB5H steel is often used for a variety of applications. It is widely used in the automotive industry for components such as pistons, crankshafts, and connecting rods. In the aerospace industry, the steel is often used for components such as turbine blades and air frame components.
Smelting temperature:1819°C - 1196°C
Application:Steels for quenching and tempering - part 3: technical delivery conditions for alloy steels
EN 10083-3 30MnB5H Material Chemical Composition
The chemical composition of the EN 10083-3 30MnB5H steel are as follows:
| Element | Min | Max |
|---|---|---|
| Boron (B) | 0.0008 | 0.0050 |
| PhOsphorus (P) | - | 0.0350 |
| Sulfur (S) | - | 0.0400 |
| Manganese (Mn) | 1.1500 | 1.4500 |
| Silicon (Si) | - | 0.4000 |
| Carbon (C) | 0.2700 | 0.3300 |
EN 10083-3 30MnB5H Material Mechanical Properties
Yield strength is the stress at which a material permanently deform, or yield. The yield strength of EN 10083-3 30MnB5H steel depends on the grade, but is typically between 345 N/mm2 and 700 N/mm2.
The mechanical properties of the EN 10083-3 30MnB5H steel are as follows:
| YieldRp0.2 | 375 (≥)(MPa) |
| TeileRm | 834 (≥)(MPa) |
| ImpactKV/Ku | 41(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 234 |
EN 10083-3 30MnB5H Material Thermal Properties
The thermal performance parameters of the EN 10083-3 30MnB5H steel are as follows:
| Temperature (°C) | 34 | 126 | 845 |
| Modulus of elasticity (GPa) | - | 654 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 11 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 124 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 323 |
| Poisson’s coefficient, ν | - | - | 431 |
EN 10083-3 30MnB5H Material Machining Technology
Cutting speed and feed rate are two of the most important machining parameters for EN 10083-3 30MnB5H steel. The cutting speed should be selected in relation to the cutting tool's hardness and type, the feed rate should be matched to the cutting speed. The optimum cutting parameters will vary depending on the cutting tool selected and the part geometry. Generally, higher cutting speeds are associated with reduced surface finish, so care should be taken to ensure that the surfaces produced meet specifications.