ASTM269 TP304 Seamless TUBE Stainless Steel Extruded Fin Tube
Extruded fin tubes, also known as bimetallic rolled fin tubes, are tubes that can withstand corrosion and completely overcome the shortcomings of L-type winding tubes. The inner and outer tubes of bimetallic rolled tubes can be selected separately, and the inner tube is selected according to the corrosion of the hot fluid and the pressure, such as carbon steel, stainless steel, alloy steel, brass, etc.
The outer tube can be made of metals that have good ductility, strong atmospheric corrosion resistance, and good heat transfer performance. Generally, aluminum and copper are used. After rolling, the inner and outer tubes can be completely tightly combined. In addition to being used for highly corrosive fluids inside the tube, bimetallic rolled tubes can also be used in wet air coolers to resist corrosion on the outside of the tube.
The advantages are good corrosion resistance, long service life, high heat transfer efficiency, small pressure drop, high fin integrity and rigidity, and because the fins are firm and not easy to deform, they can be cleaned with high-pressure water.
Extruded Fin Tube material:
1.Carbon steel
2.Stainless steel
3.Alloy steel
4.Brass
A269 TP304 Stainless Steel Tube Equivalent Grades
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
| BS | En | No | Name |
| TP304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
A269 TP304 Stainless Steel Tube Chemical Composition
| Grades | Carbon | Chromium | Phosphorus | Sulfur | Manganese | Silicon | Nickel |
| TP304 | 0.08 | 18.0-20.0 | 0.045 | 0.03 | 2 | 1 | 8.0-11.0 |
A269 TP304 Stainless Steel Tube Mechanical Properties
| Material | Temperure | Heat | Yield Strength | Tensile Strength | Elongation |
| Min.º F(º C) | Treatment | Ksi (MPa) | Ksi (MPa) |
| TP304 | 1900 (1040) | Solution | 30(205) | 75(515) | 35 |
Quality Control for Extruded Fin Tube
Inspection and Tests Performed
Chemical Composition inspection,
Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test),
Surface and Dimension Test,
No-destructive Test,
Hydrostatic Test.
Application
steel, petroleum, chemical industy,machinery, shipbulding, power station, hospital and food industy.
Product Tags:
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ASTM269 TP304 Seamless Tube Stainless Steel Extruded Fin Tube For Heat Exchanger Images
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