GB 1591 15MnTi Introduce
Another mechanical property of GB 1591 15MnTi steel is its strength. This steel is known for its strength and toughness, allowing it to bear heavy loads and last for a long time. This makes it ideal for projects like buildings, bridges, and other structures that require a lot of weight support. Additionally, the strength of GB 1591 15MnTi steel makes it resistant to wear and tear, which can help extend the service life of the structure.
Smelting temperature:1524°C - 1354°C
Application:Low alloy high strength structural steel
GB 1591 15MnTi Material Chemical Composition
The chemical composition of the GB 1591 15MnTi steel are as follows:
| Element | Min | Max |
|---|---|---|
| Titanium (Ti) | 0.1200 | 0.2000 |
| Silicon (Si) | 0.2000 | 0.5500 |
| Sulfur (S) | - | 0.0450 |
| PhOsphorus (P) | - | 0.0450 |
| Manganese (Mn) | 1.2000 | 1.6000 |
| Carbon (C) | 0.1200 | 0.1800 |
| Nickel (Ni) | - | 0.3000 |
| Copper (Cu) | - | 0.3000 |
| Chromium (Cr) | - | 0.3000 |
GB 1591 15MnTi Material Mechanical Properties
The mechanical properties of the GB 1591 15MnTi steel are as follows:
| YieldRp0.2 | ≤ 716 (MPa) |
| TeileRm | ≤ 952 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 312 |
GB 1591 15MnTi Material Thermal Properties
The thermal performance parameters of the GB 1591 15MnTi steel are as follows:
| Temperature (°C) | 23 | 481 | 312 |
| Modulus of elasticity (GPa) | - | 754 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 23.3 | 24.2 |
| Specific thermal capacity (J/kg·°C) | - | 332 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 313 |
| Poisson’s coefficient, ν | - | - | 432 |
GB 1591 15MnTi Material Machining Technology
Machining GB 1591 15MnTi steel can be a challenging but rewarding process due to its excellent strength, weldability, and machinability. The right tools, techniques, and cutting conditions must be used in order to obtain acceptable results, and common problems such as poor surface finish and tool wear should be kept in mind. Additionally, there are several benefits to using this type of steel, as well as alternative materials to consider when machining is not possible. By understanding the process and taking the right measures, it is possible to obtain the desired results with this versatile material.