GB/T 3077 A50202 Introduce
GB/T 3077 A50202 steel is a versatile material that is used in the construction of bridges, vessels, chemical tanks and other structures that must be able to withstand extreme conditions. Its set of unique chemical properties, such as high tensile strength, excellent ductility, heat resistance, corrosion resistance, weldability and machinability make it the perfect choice for a wide range of demanding applications.
Smelting temperature:1499°C - 1159°C
Application:Alloy structural steel
GB/T 3077 A50202 Material Mechanical Properties
The mechanical properties of GB/T 3077 A50202 steel, including its strength, ductility.
Strength: GB/T 3077 A50202 steel is renowned for its high strength and ability to withstand loads and stresses. It has a tensile strength of over 500 MPa, and an ultimate tensile strength of 600 MPa. It's an excellent material for structures that must support heavy loads or experience frequent shock or impact.
Ductility: GB/T 3077 A50202 steel has a high ductility and is highly malleable. It can be bent, cut, and pressed into a variety of shapes without cracking or breaking. This is critical for applications such as auto body parts and construction components, where the steel must be able to withstand constant mechanical stress without becoming brittle.
The mechanical properties of the GB/T 3077 A50202 steel are as follows:
| YieldRp0.2 | ≤ 132 (MPa) |
| TeileRm | ≤ 564 (MPa) |
| ImpactKV/Ku | 13(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) | 212 |
GB/T 3077 A50202 Material Thermal Properties
The thermal performance parameters of the GB/T 3077 A50202 steel are as follows:
| Temperature (°C) | 11 | 254 | 873 |
| Modulus of elasticity (GPa) | - | 525 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 41.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 132 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 321 |
| Poisson’s coefficient, ν | - | - | 333 |
GB/T 3077 A50202 Material Machining Technology
When performing machining operations on GB/T 3077 A50202 steel, it is important to use the correct cutting speed and feed rates. The cutting speed should be adjusted based on the size and shape of the workpiece, as well as the hardness and strength of the steel. It is also important to use the proper cutting tools and lubricants to ensure the best results. Using the wrong cutting tools or failing to use adequate lubrication can lead to poor surface finish, overheating, and other issues.