GB/T 3077 A22152 Introduce
GB/T 3077 A22152 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:1527°C - 1185°C
Application:Alloy structural steel
GB/T 3077 A22152 Material Chemical Composition
The chemical composition of the GB/T 3077 A22152 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1700 | 0.3700 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | - | 0.3000 |
| Manganese (Mn) | 1.1000 | 1.4000 |
| Copper (Cu) | - | 0.3000 |
| Chromium (Cr) | 0.4000 | 0.7000 |
| Carbon (C) | 0.1200 | 0.1800 |
GB/T 3077 A22152 Material Mechanical Properties
GB/T 3077 A22152 is mostly used for engineering, industrial and transportation applications that require high strength, corrosion resistance, superior performance, and long service life. GB/T 3077 A22152 meets the demands of the most stringent applications with its good machinability, low cost, good formability and high strength-to-weight ratio. It is the perfect choice for automotive, aerospace, and other lightweight applications.
The mechanical properties of the GB/T 3077 A22152 steel are as follows:
| YieldRp0.2 | ≤ 267 (MPa) |
| TeileRm | ≤ 432 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 42% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 241 |
GB/T 3077 A22152 Material Thermal Properties
The thermal performance parameters of the GB/T 3077 A22152 steel are as follows:
| Temperature (°C) | 11 | 311 | 282 |
| Modulus of elasticity (GPa) | - | 356 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 23 |
| Thermal conductivity (W/m·°C) | - | 13.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 244 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 311 |
| Poisson’s coefficient, ν | - | - | 432 |
GB/T 3077 A22152 Material Machining Technology
GB/T 3077 A22152 has excellent mechanical properties, good weldability, good cold and hot processing performance, good corrosion resistance, and mostly non-heat treatable hardening. In addition, it has relatively high thermal conductivity, good oxidation resistance, and good machinability.