GB/T 3077 A42202 Introduce
GB/T 3077 A42202 steel is a versatile material that is ideal for a variety of engineering and automotive applications. Its high strength and ductility allow it to endure heavy loads and stress, while its impact resistance and fatigue resistance make it suitable for use in parts and components that are subject to frequent vibration or impacts. GB/T 3077 A42202 steel is highly economical. It has good weldability and is easy to shape and form, which make it cost-effective to produce. It is also resistant to corrosion and is available in a variety of grades, making it a versatile and reliable material for a wide range of applications.
Smelting temperature:1864°C - 1286°C
Application:Alloy structural steel
GB/T 3077 A42202 Material Chemical Composition
The chemical composition of the GB/T 3077 A42202 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1700 | 0.3700 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | 2.7500 | 3.1500 |
| Molybdenum (Mo) | - | 0.1500 |
| Manganese (Mn) | 0.3000 | 0.6000 |
| Copper (Cu) | - | 0.3000 |
| Chromium (Cr) | 0.6000 | 0.9000 |
| Carbon (C) | 0.1700 | 0.2400 |
GB/T 3077 A42202 Material Mechanical Properties
The mechanical properties of GB/T 3077 A42202 steel, including its strength, ductility.
Strength: GB/T 3077 A42202 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 A42202 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 A42202 steel are as follows:
| YieldRp0.2 | ≤ 911 (MPa) |
| TeileRm | ≤ 326 (MPa) |
| ImpactKV/Ku | 24(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 111 |
GB/T 3077 A42202 Material Thermal Properties
The thermal performance parameters of the GB/T 3077 A42202 steel are as follows:
| Temperature (°C) | 41 | 956 | 889 |
| Modulus of elasticity (GPa) | - | 717 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 421 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 444 |
| Poisson’s coefficient, ν | - | - | 143 |
GB/T 3077 A42202 Material Machining Technology
GB/T 3077 A42202 steel is a versatile material that is highly suited to automotive and engineering applications. Its high strength and its resistance to impacts, wear, and fatigue make it an excellent choice for parts and components that must be able to endure heavy loads, shocks, and vibrations without breaking or deforming. In addition to its mechanical properties, GB/T 3077 A42202 steel is economical and easy to manipulate, making it a reliable and cost-effective choice for many engineering and automotive designs.