ASTM A249/A249M Type 310S Introduce
ASTM A249/A249M Type 310S is a type of steel referred to as a welded austenitic steel boiler and super heater tubes. It is a carbon steel alloy primarily composed of chromium and nickel, and may also include other elements such as copper and molybdenum. The mechanical properties of ASTM A249/A249M Type 310S are remarkable, making it a popular choice for many components in various industries, such as plumbing, heating, and cooling systems.
Smelting temperature:1568°C - 1734°C
Application:Welded austenitic steel tubes for boilers, superheaters, heat exchangers and condensers
ASTM A249/A249M Type 310S Material Mechanical Properties
This ASTM A249/A249M covers ferritic/austenitic stainless steel welded and heavily cold worked tubes for general corrosive service, heat exchangers, condensers, heat treatment special and other similar applications. ASTM A249/A249M Type 310S is typically used within a range of temperatures of −450°F (−268°C) and higher.
The mechanical properties of the ASTM A249/A249M Type 310S steel are as follows:
| YieldRp0.2 | ≤ 755 (MPa) |
| TeileRm | ≤ 521 (MPa) |
| ImpactKV/Ku | 22(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 34% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 224 |
ASTM A249/A249M Type 310S Material Thermal Properties
The thermal performance parameters of the ASTM A249/A249M Type 310S steel are as follows:
| Temperature (°C) | 12 | 959 | 898 |
| Modulus of elasticity (GPa) | - | 384 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 32 |
| Thermal conductivity (W/m·°C) | - | 44.3 | 31.2 |
| Specific thermal capacity (J/kg·°C) | - | 142 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.42 | - | - |
| Deity (kg/dm³) | - | - | 242 |
| Poisson’s coefficient, ν | - | - | 244 |
ASTM A249/A249M Type 310S Material Machining Technology
Machinability is a measure of how easily a material can be cut, drilled, or finished using machine tools. ASTM A249/A249M Type 310S steel has a high machinability rating and can be easily cut, drilled, or finished using machine tools.