ASME SA-213/SA-213M Grade TP 347 Introduce
ASME SA-213/SA-213M Grade TP 347 steel is part of the family of heat resistant alloy steels. This type of steel is designed to resist oxidation and corrosion at elevated temperatures and pressures. It has become very popular in a variety of industries due to its ability to provide a wide range of applications. With this type of steel, engineers and designers can trust that it is able to perform under high stress and temperature levels, making it ideal for use in a variety of operations.
Smelting temperature:1694°C - 1236°C
Application:Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers
ASME SA-213/SA-213M Grade TP 347 Material Chemical Composition
The chemical composition of the ASME SA-213/SA-213M Grade TP 347 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.7500 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0450 |
| Nickel (Ni) | 9.0000 | 13.0000 |
| (Nb+Ta) | - | 1.1000 |
| Manganese (Mn) | - | 2.0000 |
| Chromium (Cr) | 17.0000 | 20.0000 |
| Carbon (C) | - | 0.0800 |
ASME SA-213/SA-213M Grade TP 347 Material Mechanical Properties
The most significant mechanical properties of ASME SA-213/SA-213M Grade TP 347 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 TP 347 steel are as follows:
| YieldRp0.2 | ≤ 692 (MPa) |
| TeileRm | ≤ 133 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 23% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 332 |
ASME SA-213/SA-213M Grade TP 347 Material Thermal Properties
The thermal performance parameters of the ASME SA-213/SA-213M Grade TP 347 steel are as follows:
| Temperature (°C) | 41 | 769 | 331 |
| Modulus of elasticity (GPa) | - | 945 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 44 |
| Thermal conductivity (W/m·°C) | - | 22.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 313 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.11 | - | - |
| Deity (kg/dm³) | - | - | 243 |
| Poisson’s coefficient, ν | - | - | 134 |
ASME SA-213/SA-213M Grade TP 347 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 Grade TP 347 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.