ASME SA-213/SA-213M Grade T9 Introduce
The most common use for ASME SA-213/SA-213M Grade T9 is in boilers, but it is also common to see it used in pressure vessels, heat exchangers and piping systems. The alloy is well suited for these types of applications due to its strong resistance to corrosion, strength and weldability. It is also resistant to elevated temperatures, making it ideal for use around hot areas.
Smelting temperature:1845°C - 1614°C
Application:Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers
ASME SA-213/SA-213M Grade T9 Material Mechanical Properties
The most significant mechanical properties of ASME SA-213/SA-213M Grade T9 steel are the yield strength and ultimate tensile strength. The yield strength represents the amount of force that the material can withstand before it starts to deform in a permanent manner. The ultimate tensile strength, meanwhile, is the maximum tension that the steel can withstand before it starts to fracture.
The mechanical properties of the ASME SA-213/SA-213M Grade T9 steel are as follows:
| YieldRp0.2 | ≤ 792 (MPa) |
| TeileRm | ≤ 519 (MPa) |
| ImpactKV/Ku | 31(J) |
| ElongationA | 23% |
| Reduction in cross section on fractureZ | 23% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 141 |
ASME SA-213/SA-213M Grade T9 Material Thermal Properties
The thermal performance parameters of the ASME SA-213/SA-213M Grade T9 steel are as follows:
| Temperature (°C) | 22 | 182 | 628 |
| Modulus of elasticity (GPa) | - | 291 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 33.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 131 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.43 | - | - |
| Deity (kg/dm³) | - | - | 122 |
| Poisson’s coefficient, ν | - | - | 212 |
ASME SA-213/SA-213M Grade T9 Material Machining Technology
There are many reasons for machining ASME SA-213/SA-213M Grade T9 steel. The steel exhibits high strength, excellent ductility and formability, good creep resistance and oxidation resistance, and toughness and resistance to stress cracking. These features make the steel suitable for applications where strength, durability, and toughness are required. As such, many components in the construction and industrial sector are manufactured from ASME SA-213/SA-213M Grade T9 steel.