YUHONG HOLDING GROUP CO., LTD
YUHONG HOLDING GROUP CO., LTD
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ASTM A213 TP347, Stainless Steel Seamless Tube , Boiler and Heat Exchanger Application
TP347 Stainless Steel: Niobium-stabilized to enhance high-temperature performance and prevent intergranular corrosion. TP347 can withstand high temperatures (up to about 900°F or 482°C) without significant loss of mechanical properties, making it ideal for heat exchangers. TP347 can be welded using various methods, including TIG and MIG welding, without significant loss of corrosion resistance.
ASTM A213, This standard specification covers seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.
ASTM A213 TP347 Stainless Steel Heat Exchanger Tube is specifically designed for high-temperature applications, offering excellent corrosion resistance and stability. Made from TP347 stainless steel, it is stabilized with niobium (columbium) to prevent carbide precipitation.
Chemical Composition:
| Grade | Cr | Ni | Nb | C |
| TP347 | 17.0-19.0% | 9.0-13.0% | ≥ 10x C content, typically 0.2–0.7% | 0.08% max |
Mechanical Properties:
| Grade | Tensile Strength | Yield Strength | Elongation | Hardness |
| TP347 | ≥ 205 MPa (30 ksi) | ≥ 515 MPa (75 ksi) | ≥ 35% in 50 mm | Typically ≤ 95 HRB |
1>Power Plant;
2>.Heat Exchanger;
3>.Boiler；
4>.Radiant Coil;
5>.Convection Coil;
6>.Fired Furnace ;
7>.Fired Heater;
