ASME SA-213/SA-213M TP317L Introduce
The most common use for ASME SA-213/SA-213M TP317L 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:1748°C - 1336°C
Application:Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers
ASME SA-213/SA-213M TP317L Material Chemical Composition
The chemical composition of the ASME SA-213/SA-213M TP317L steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 1.0000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0450 |
| Nickel (Ni) | 13.5000 | 17.5000 |
| Nitrogen (N) | 0.1000 | 0.2000 |
| Molybdenum (Mo) | 4.0000 | 5.0000 |
| Manganese (Mn) | - | 2.0000 |
| Copper (Cu) | - | 0.7500 |
| Chromium (Cr) | 17.0000 | 20.0000 |
| Carbon (C) | - | 0.0300 |
ASME SA-213/SA-213M TP317L Material Mechanical Properties
The most significant mechanical properties of ASME SA-213/SA-213M TP317L 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 TP317L steel are as follows:
| YieldRp0.2 | ≤ 353 (MPa) |
| TeileRm | ≤ 627 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 31% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 124 |
ASME SA-213/SA-213M TP317L Material Thermal Properties
The thermal performance parameters of the ASME SA-213/SA-213M TP317L steel are as follows:
| Temperature (°C) | 32 | 356 | 959 |
| Modulus of elasticity (GPa) | - | 955 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 13 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 423 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 213 |
ASME SA-213/SA-213M TP317L Material Machining Technology
Corrosion resistance is a measure of a material's ability to resist rust and other forms of oxidation. ASME SA-213/SA-213M TP317L steel has excellent corrosion resistance, thanks to its high alloy content. The chromium and nickel present in the alloy form a protective layer on the surface of the steel, protecting it from the elements. Other elements, such as molybdenum, silicon and phosphorus, also contribute to the alloy's corrosion resistance by increasing hardness and reducing porosity.