GB Grade A36 GB 712 structural steel
shipbuilding steel Product Introduction
GB Grade A36 GB 712 Introduction
GB Grade A36 GB 712 is used in a variety of applications, such as bridge construction, industrial machinery, shipbuilding, and vehicle parts. It is often used in deeper parts of bridges and other large structures, as it can handle higher levels of stress and strain. It is also used in vehicles for suspension parts and other components, such as drive shafts and axles. In shipbuilding, it is used for ship frames and other parts, due to its strength and resistance to corrosion. It can also be used in industrial machines, such as presses and conveyor rollers, due to its resistance to wear and tear.
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GB Grade A36 GB 712 Chemical Element
GB Grade A36 GB 712 chemical composition has significant on GB Grade A36 GB 712 mechnical properties. Among all the GB Grade A36 GB 712 elements. Carbon is hardening element. Silicon helps to strengthen the strength. Manganese is the important austenite stabilizing elements contribute to the formation of texture structure and increase the firmness, strength and wear resistance. Phosphorus reduces the plasticity and toughness and appearing cold brittleness. Meanwhile, It can significantly increase the strength of steel, and improve the atmospheric corrosion stability. Sulfur makes the hot brittleness of steel high.
| Element | Min | Max | Similar |
|---|---|---|---|
| C | - | 0.1800 | - |
| Si | - | 0.5000 | - |
| Mn | 0.9000 | 1.6000 | - |
| S | - | 0.0350 | - |
| P | - | 0.0350 | - |
| Cr | - | 0.2000 | - |
| Ni | - | 0.4000 | - |
| Mo | - | 0.0800 | - |
| V | 0.0500 | 1.0000 | - |
| Nb | 0.0200 | 0.0500 | - |
| Al | 0.0150 | - | - |
| Ti | - | 0.0200 | - |
| Cu | - | 0.3500 | - |
GB Grade A36 GB 712 Mechanical Properties
More detailed information about GB Grade A36 GB 712 steel Mechanical Properties, please refer to the following table:
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 192 (≥) | 993 (≥) | 22 | 33 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 |
GB Grade A36 GB 712 Physical Properties
Physical performance parameters of GB Grade A36 GB 712 are mainly indicated by thermal conductivity, specific thermal capacity, modulus of elasticity, coefficient of thermal expansion, electrical resistance value, density, poisson's ratio, etc. parameters of GB Grade A36 GB 712.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 33 | - | - | 0.14 | - | |||
| 478 | 467 | - | 22.3 | 113 | - | ||
| 823 | - | 12 | 22.2 | 142 | 124 |
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