GB/T 700 U12355 Introduce
GB/T 700 U12355 carbon structural steel is used in a variety of applications. It is commonly used in bridges and buildings since its high strength makes it well suited for these applications. It is also used in the construction of ships and trains, and for equipment used in factories and workshops. It can also be used for making steel frames, shelves, plates, and bars.
Smelting temperature:1981°C - 1545°C
Application:Carbon structural steels
GB/T 700 U12355 Material Chemical Composition
The chemical composition of the GB/T 700 U12355 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.3000 |
| Sulfur (S) | - | 0.0450 |
| PhOsphorus (P) | - | 0.0450 |
| Nickel (Ni) | - | 0.3000 |
| Manganese (Mn) | 0.3000 | 0.7000 |
| Copper (Cu) | - | 0.3000 |
| Chromium (Cr) | - | 0.3000 |
| Carbon (C) | 0.1200 | 0.2000 |
GB/T 700 U12355 Material Mechanical Properties
GB/T 700 U12355 steel is an all-round steel used for various metal constructions in China. It has excellent mechanical properties, including yield strength, tensile strength, toughness, elongation, and even overall ductility.
The mechanical properties of the GB/T 700 U12355 steel are as follows:
| YieldRp0.2 | ≤ 511 (MPa) |
| TeileRm | ≤ 377 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 343 |
GB/T 700 U12355 Material Thermal Properties
The thermal performance parameters of the GB/T 700 U12355 steel are as follows:
| Temperature (°C) | 21 | 237 | 794 |
| Modulus of elasticity (GPa) | - | 631 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 14 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 123 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 124 |
| Poisson’s coefficient, ν | - | - | 321 |
GB/T 700 U12355 Material Machining Technology
GB/T 700 U12355 steel is a popular standard steel grade that is suitable for machining. The machining of GB/T 700 U12355 steel involves the use of cutting tools, the application of various machining processes, and the adherence to safety measures. By following the appropriate steps and using the correct tools, it is possible to achieve good results when machining GB/T 700 U12355 steel.