GB/T 5216 42CrMoAH Introduce
The chemical composition of the GB/T 5216 42CrMoAH 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:1942°C - 1388°C
Application:Guaranteed hardenable structural steel
GB/T 5216 42CrMoAH Material Chemical Composition
The chemical composition of the GB/T 5216 42CrMoAH steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1700 | 0.3700 |
| Sulfur (S) | - | 0.0250 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | - | 0.3000 |
| Molybdenum (Mo) | 0.1500 | 0.2000 |
| Manganese (Mn) | 0.5500 | 0.9000 |
| Copper (Cu) | - | 0.2500 |
| Chromium (Cr) | 0.8500 | 1.2500 |
| Carbon (C) | 0.3700 | 0.4400 |
GB/T 5216 42CrMoAH Material Mechanical Properties
The mechanical properties of GB/T 5216 42CrMoAH steel are incredibly important for engineers, manufacturers, and other industries that depend on its strength and durability. GB/T 5216 42CrMoAH steel is a type of high-strength low-alloy steel that has been developed for use in a range of applications, from construction to automotive and aerospace engineering. The mechanical properties of this steel have been established through a variety of tests, including hardness tests, tension tests, fatigue tests, and more. These tests have been designed to ensure optimum strength and performance in a variety of situations.
The mechanical properties of the GB/T 5216 42CrMoAH steel are as follows:
| YieldRp0.2 | ≤ 652 (MPa) |
| TeileRm | ≤ 336 (MPa) |
| ImpactKV/Ku | 13(J) |
| ElongationA | 31% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 421 |
GB/T 5216 42CrMoAH Material Thermal Properties
The thermal performance parameters of the GB/T 5216 42CrMoAH steel are as follows:
| Temperature (°C) | 22 | 782 | 571 |
| Modulus of elasticity (GPa) | - | 654 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
| Thermal conductivity (W/m·°C) | - | 33.3 | 44.2 |
| Specific thermal capacity (J/kg·°C) | - | 442 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.21 | - | - |
| Deity (kg/dm³) | - | - | 422 |
| Poisson’s coefficient, ν | - | - | 224 |
GB/T 5216 42CrMoAH Material Machining Technology
When machining GB/T 5216 42CrMoAH 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 42CrMoAH steel without damaging the material.