GB/T 5216 40CrH Introduce
GB/T 5216 40CrH steel is a type of alloy steel that is mainly used in construction and manufacturing. It is a low-alloy ferritic steel, composed mainly of iron, chromium and carbon. It is used to produce various structural components, such as fasteners, drill bits and springs. This material is known for its superior strength, toughness and corrosion resistance; however, it can be susceptible to corrosion if not properly maintained.
Smelting temperature:1947°C - 1233°C
Application:Guaranteed hardenable structural steel
GB/T 5216 40CrH Material Mechanical Properties
GB/T 5216 40CrH is a type of high-strength low-alloy steel that has been developed for use in a wide range of applications. The mechanical properties of this steel have been established through a variety of tests, such as hardness tests, tension tests, fatigue tests, and more. Through these tests, it is clear that GB/T 5216 40CrH has excellent strength and durability. Furthermore, heat treatment of the steel can give it increased resistance to abrasion, fatigue, and corrosion. For these reasons, GB/T 5216 40CrH is an ideal material for a variety of engineering applications.
The mechanical properties of the GB/T 5216 40CrH steel are as follows:
| YieldRp0.2 | ≤ 784 (MPa) |
| TeileRm | ≤ 521 (MPa) |
| ImpactKV/Ku | 11(J) |
| ElongationA | 24% |
| Reduction in cross section on fractureZ | 33% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 124 |
GB/T 5216 40CrH Material Thermal Properties
The thermal performance parameters of the GB/T 5216 40CrH steel are as follows:
| Temperature (°C) | 21 | 319 | 244 |
| Modulus of elasticity (GPa) | - | 139 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 41.2 |
| Specific thermal capacity (J/kg·°C) | - | 321 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 322 |
| Poisson’s coefficient, ν | - | - | 331 |
GB/T 5216 40CrH Material Machining Technology
GB/T 5216 40CrH steel is a variety of steel developed by the China Iron and Steel Association in order to meet the increasing demand for modern steel production in China. GB/T 5216 40CrH is created by a process of alloying, which involves combining different metal elements to create a steel with desired properties. GB/T 5216 40CrH steel is commonly used in the production of automobile parts, nuts and bolts, bridges, marine and industrial components, and in the production of bearings for machinery. Due to its high strength and hardenability, GB/T 5216 40CrH steel is especially suitable for the machining of relatively high-strength components