EN 10085 34CrAlNi7-10 Introduce
The introduction of EN 10085 34CrAlNi7-10 has been an important step forward for the construction industry in Europe, as it has provided improved standards and quality assurance for materials involved in the construction of bridges, ships and other structures. With EN 10085 34CrAlNi7-10 now implemented, manufacturers, engineers and customers can be confident that their steel is of a consistent quality and grade, no matter the origin.
Smelting temperature:1249°C - 1258°C
Application:Nitrided steel - technical delivery conditions
EN 10085 34CrAlNi7-10 Material Chemical Composition
The chemical composition of the EN 10085 34CrAlNi7-10 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.4000 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | 0.8500 | 1.1500 |
| Molybdenum (Mo) | 0.1500 | 0.2500 |
| Manganese (Mn) | 0.4000 | 0.7000 |
| Chromium (Cr) | 1.5000 | 1.8000 |
| Carbon (C) | 0.3000 | 0.3700 |
| Aluminum (Al) | 0.8000 | 1.2000 |
EN 10085 34CrAlNi7-10 Material Mechanical Properties
The mechanical properties of EN 10085 34CrAlNi7-10 steel are highly dependent on its chemical composition and the quenching process. In general, EN 10085 34CrAlNi7-10 steel shows excellent cold formability and weldability due to its low carbon content and is able to retain its strength at elevated temperatures. It also has a good balance of strength and ductility and offers a greater toughness than most other structural steel alloys.
The mechanical properties of the EN 10085 34CrAlNi7-10 steel are as follows:
| YieldRp0.2 | ≤ 891 (MPa) |
| TeileRm | ≤ 516 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 22% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 431 |
EN 10085 34CrAlNi7-10 Material Thermal Properties
The thermal performance parameters of the EN 10085 34CrAlNi7-10 steel are as follows:
| Temperature (°C) | 33 | 583 | 722 |
| Modulus of elasticity (GPa) | - | 467 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 24.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 341 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 123 |
| Poisson’s coefficient, ν | - | - | 411 |
EN 10085 34CrAlNi7-10 Material Machining Technology
EN 10085 34CrAlNi7-10 steel is classified as a medium carbon steel. It is a low-alloy type of steel mainly used in the automotive, machinery, and tool-making industries. EN 10085 34CrAlNi7-10 steel is strong, ductile, and has excellent heat- and corrosion-resistance. It has relatively high machinability and good grindability, making it suitable for many machining operations.