ASTM A131/A131M A131 Grade CS Introduce
ASTM A131/A131M A131 Grade CS has a low carbon content, which prevents the formation of brittle layers of iron oxide during welding, making it less prone to cracks and fractures. It can also be treated to further increase its resistance to corrosion, by adding an aluminum layer. ASTM A131/A131M A131 Grade CS is generally used in maritime applications such as shipbuilding, oil platforms, containers, naval vessels, and offshore structures. It is also used in tank fabrications, processing plants, and pressure vessels. This steel can also be used to create a wide range of other products, including bridges, gates, walkways, ladders, and more.
Smelting temperature:1399°C - 1511°C
Application:Structural steel for seagoing
ASTM A131/A131M A131 Grade CS Material Chemical Composition
The chemical composition of the ASTM A131/A131M A131 Grade CS steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | 0.1000 | 0.3500 |
| Sulfur (S) | - | 0.0350 |
| PhOsphorus (P) | - | 0.0350 |
| Nickel (Ni) | - | 0.0200 |
| Molybdenum (Mo) | - | 0.0200 |
| Manganese (Mn) | 1.0000 | - |
| Copper (Cu) | - | 0.0200 |
| Chromium (Cr) | - | 0.0200 |
| (C+Mn/6) | - | 0.4000 |
| Carbon (C) | - | 0.1600 |
ASTM A131/A131M A131 Grade CS Material Mechanical Properties
In addition to its strength and corrosion resistance, ASTM A131/A131M A131 Grade CS steel also has excellent weldability. Its low carbon and silicon contents make it easy to weld and make strong weld joints. This makes it an ideal choice for shipbuilding and other applications where welding is a common practice.
The mechanical properties of the ASTM A131/A131M A131 Grade CS steel are as follows:
| YieldRp0.2 | ≤ 698 (MPa) |
| TeileRm | ≤ 641 (MPa) |
| ImpactKV/Ku | 24(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 12% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 442 |
ASTM A131/A131M A131 Grade CS Material Thermal Properties
The thermal performance parameters of the ASTM A131/A131M A131 Grade CS steel are as follows:
| Temperature (°C) | 34 | 174 | 343 |
| Modulus of elasticity (GPa) | - | 387 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 343 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.33 | - | - |
| Deity (kg/dm³) | - | - | 413 |
| Poisson’s coefficient, ν | - | - | 414 |
ASTM A131/A131M A131 Grade CS Material Machining Technology
Cutting operations are used to cut ASTM A131/A131M A131 Grade CS steel into small pieces or shapes. Common types of cutting tools used for this purpose include shears and saws. When using shears, be sure to use high-speed steel or carbide tools, as these are designed for high-temperature environments.