GB/T 5216 U59457 Introduce
The chemical composition of the GB/T 5216 U59457 steel has a strong influence on its mechanical properties, such as tensile strength, toughness and ductility. The higher levels of chromium in the steel increase its resistance to corrosion and its durability. The presence of silicon and nickel increase the steel's strength and ductility, enabling it to be used in highly stressed applications. The carbon content of the steel determines its hardness, as high carbon levels increase hardness and low carbon levels decrease hardness.
Smelting temperature:1859°C - 1133°C
Application:Guaranteed hardenable structural steel
GB/T 5216 U59457 Material Chemical Composition
The chemical composition of the GB/T 5216 U59457 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1700 | 0.3700 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0300 |
| Nickel (Ni) | - | 0.3000 |
| Manganese (Mn) | 0.5000 | 0.8500 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | - | 0.2500 |
| Carbon (C) | 0.4200 | 0.5000 |
GB/T 5216 U59457 Material Mechanical Properties
Tensile tests are often performed on GB/T 5216 U59457 steel to determine its strength under load. These tests measure the maximum pulling force that the steel can withstand before breaking. During tensile tests, the steel sample is placed in a machine, and the force is gradually increased until the sample breaks. Tension tests on GB/T 5216 U59457 show that the steel has a yield strength of around 745 MPa, and a tensile strength of up to 835 MPa.
The mechanical properties of the GB/T 5216 U59457 steel are as follows:
| YieldRp0.2 | ≤ 629 (MPa) |
| TeileRm | ≤ 849 (MPa) |
| ImpactKV/Ku | 44(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) | 133 |
GB/T 5216 U59457 Material Thermal Properties
The thermal performance parameters of the GB/T 5216 U59457 steel are as follows:
| Temperature (°C) | 41 | 648 | 344 |
| Modulus of elasticity (GPa) | - | 471 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 111 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 211 |
| Poisson’s coefficient, ν | - | - | 133 |
GB/T 5216 U59457 Material Machining Technology
When machining GB/T 5216 U59457 steel, it is important to use the proper tools and techniques. As a result, it is necessary to have robust cutting tools and machines that are capable of withstanding the strength of the material being machined. In addition, it is important to keep machine speeds and feeds within the appropriate range and to use coolants or lubrication to reduce friction and heat. It is also important to use the correct cutting parameters for the material being machined, such as cutting speeds, feeds, and depths of cut. Additionally, it is beneficial to experiment with different parameters and tools to find the most efficient way of machining GB/T 5216 U59457 steel without damaging the material.