EN 10216-2 8MoB5-4 Introduce
EN 10216-2 8MoB5-4 is a high-alloy, ferritic steel that is widely used in many industries. Its chemical composition consists of fundamentals such as iron, carbon, chromium, molybdenum, nickel, and other elements. The steel has good physical properties such as tensile and yield strength, hardness and good chemical resistance. Additionally, its excellent formability and weldability make it an ideal choice for many applications.
Smelting temperature:1544°C - 1152°C
Application:Pressure steel - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes
EN 10216-2 8MoB5-4 Material Chemical Composition
The chemical composition of the EN 10216-2 8MoB5-4 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.0600 | 0.1000 |
| Manganese (Mn) | 0.6000 | 0.8000 |
| PhOsphorus (P) | - | 0.0250 |
| Sulfur (S) | - | 0.0100 |
| Silicon (Si) | 0.1000 | 0.3500 |
| Chromium (Cr) | - | 0.2000 |
| Molybdenum (Mo) | 0.4000 | 0.5000 |
| Copper (Cu) | - | 0.3000 |
| Titanium (Ti) | - | 0.0600 |
| Boron (B) | 0.0020 | 0.0060 |
| Aluminum (Al) | - | 0.0600 |
EN 10216-2 8MoB5-4 Material Mechanical Properties
The mechanical properties of the EN 10216-2 8MoB5-4 steel are as follows:
| YieldRp0.2 | ≤ 178 (MPa) |
| TeileRm | ≤ 312 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 13% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 323 |
EN 10216-2 8MoB5-4 Material Thermal Properties
The thermal performance parameters of the EN 10216-2 8MoB5-4 steel are as follows:
| Temperature (°C) | 11 | 271 | 267 |
| Modulus of elasticity (GPa) | - | 745 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 21 |
| Thermal conductivity (W/m·°C) | - | 21.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 323 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 223 |
| Poisson’s coefficient, ν | - | - | 133 |