ASTM A312/A312M Type 310Cb Introduce
ASTM A312/A312M is an international standard for seamless, welded, and heavily cold worked austenitic stainless steel pipes. It defines the chemical, mechanical, and metallurgical properties of the steel, along with the required physical and test results for standard pipes. The standard, which was first released in 2001, is published by the American Society for Testing and Materials (ASTM).
Smelting temperature:1481°C - 1447°C
Application:Seamless and welded austenitic stainless steel tube
ASTM A312/A312M Type 310Cb Material Mechanical Properties
The mechanical properties of ASTM A312/A312M Type 310Cb stainless steel pipe are essential in determining the strength, ductility, and toughness of the material. The three main mechanical properties of this material are its yield strength, tensile strength, and modulus of elasticity. The minimum required yield strength of these pipes is 0.2% of the specified ultimate tensile strength, the minimum required ultimate tensile strength is 65 Ksi (448 MPa), and the minimum required modulus of elasticity is 29,000 ksi (200,000 MPa).
The mechanical properties of the ASTM A312/A312M Type 310Cb steel are as follows:
| YieldRp0.2 | ≤ 416 (MPa) |
| TeileRm | ≤ 716 (MPa) |
| ImpactKV/Ku | 34(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 423 |
ASTM A312/A312M Type 310Cb Material Thermal Properties
The thermal performance parameters of the ASTM A312/A312M Type 310Cb steel are as follows:
| Temperature (°C) | 12 | 369 | 664 |
| Modulus of elasticity (GPa) | - | 673 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
| Thermal conductivity (W/m·°C) | - | 24.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 443 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 323 |
| Poisson’s coefficient, ν | - | - | 221 |
ASTM A312/A312M Type 310Cb Material Machining Technology
Machining of ASTM A312/A312M Type 310Cb steel is a highly complex process, but it is essential for producing items such as pipes and tubing. This special type of steel is an austenitic stainless steel, meaning it has a high level of corrosion and heat resistance due to its chromium content. Machining this type of steel requires precise control and a great deal of skill. As a result, it is only suitable for experienced machinists who understand the characteristics of this material and its machinability.