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ASME SA249 Stainless Steel Embedded Fin Tube Fin Type G L LL KL
What are finned tubes used for?
Finned tubes are the main components of heat exchangers. They are a series of tubes where fins have been added on the outside to increase the contact area with the outside fluid, to exchange heat and between the fluid inside the tube and the fluid outside the tube. Finned tubes are elongated aluminium cladded carbon steel flat tubes with brazed aluminium fins.
G Type Embedded Finned Tube is combined with two different materials
Core tube material: carbon steel, low alloy steel, stainless steel, brass, copper, copper-nickel alloy, aluminum bronze, nickel alloy.
1. Carbon steel: A179, A192, SA210 Gr A1/C, A106 Gr B
2. Stainless steel: TP304/304L, TP316/TP316L/316Ti, A789 S31803/S2205
3. Copper: UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10
Fin material:
1. Aluminum (Alu.1100, Alu.1060)
2. Copper.
3. Steel
SS304 Chemical Compositions
Element | % Present |
Carbon (C) | 0.07 |
Chromium (Cr) | 17.50 - 19.50 |
Manganese (Mn) | 2.00 |
Silicon (Si) | 1.00 |
Phosphorous (P) | 0.045 |
Sulphur (S) | 0.015b) |
Nickel (Ni) | 8.00 - 10.50 |
Nitrogen (N) | 0.10 |
Iron (Fe) | Balance |
SS304 Mechanical Properties
Property | Value |
Comprehensive Strength | 210 MPa |
Proof Stress | 210 Min MPa |
Tensile Strength | 520 - 720 MPa |
Elongation | 45 Min% |
Quality Control for G Type Embedded Finned 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
Heat Exchangers
Oil Coolers
Waste Heat Recovery
Air Conditioning
Air Heaters
Steam Condensers