EN 10085 1.8550 Introduce
Steel is a ferrous alloy, a combination of iron and carbon, and one of the most important materials in modern construction. Different types of steel have different physical and chemical properties, making them suitable for different projects. EN 10085 1.8550 steel is a high-strength and low-alloy steel that is commonly used in a wide range of industrial and civil engineering applications, including construction and manufacturing.
Smelting temperature:1163°C - 1442°C
Application:Nitrided steel - technical delivery conditions
EN 10085 1.8550 Material Chemical Composition
The chemical composition of the EN 10085 1.8550 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 1.8550 Material Mechanical Properties
The mechanical properties of EN 10085 1.8550 steel are highly dependent on its chemical composition and the quenching process. In general, EN 10085 1.8550 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 1.8550 steel are as follows:
| YieldRp0.2 | ≤ 496 (MPa) |
| TeileRm | ≤ 477 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 424 |
EN 10085 1.8550 Material Thermal Properties
The thermal performance parameters of the EN 10085 1.8550 steel are as follows:
| Temperature (°C) | 23 | 647 | 476 |
| Modulus of elasticity (GPa) | - | 556 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 222 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.41 | - | - |
| Deity (kg/dm³) | - | - | 223 |
| Poisson’s coefficient, ν | - | - | 312 |
EN 10085 1.8550 Material Machining Technology
The type of cutting tool used for machining EN 10085 1.8550 steel must be appropriate for the operation being performed. High-speed steel (HSS) tools are the most common for machining this type of steel, as they can resist heat and have good wear resistance. Carbide tools may be used for more abrasive applications.