| ASTM A213: | ASTM A213 | T12: | Finned Tube |
|---|---|---|---|
| Material: | T12 | Ends: | Plain Ends/ Bevelled Ends |
| Type: | Seamless/Welded | Shape: | Round |
| Size: | Customized | Length: | Customized |
| High Light: | Plain Ends HFW Fin Tube， T12 HFW Fin Tube， Steam Reforming Furnace Finned Tube | ||
ASTM A213 T12 HFW Alloy Steel Fin Tube
Overview
ASTM A213 T12 HFW fin tubes are a specific type of finned tubes that are manufactured using the ASTM A213 T12 seamless alloy steel tube as the base material. The HFW (High-Frequency Welded) process is employed to create the fins on the surface of the tubes.These fin tubes are commonly used in heat transfer applications， particularly in high-temperature environments. The fins on the tubes increase the surface area， allowing for enhanced heat transfer efficiency. The HFW welding process ensures a strong bond between the fins and the base tube， resulting in improved mechanical strength and durability.
Why choose HFW finn tube?
Heat Transfer Efficiency: ASTM A213 T12 is a grade of seamless ferritic alloy steel tubes designed for high-temperature services. The HFW (High-Frequency Welded) finning process enhances the heat transfer efficiency of the tubes， making them suitable for applications where heat exchange performance is crucial.Corrosion Resistance: ASTM A213 T12 has excellent corrosion resistance properties， which is important in environments where the tubes may be exposed to corrosive substances or high humidity. This ensures the longevity and durability of the fin tubes…
Chemical Composition of ASTM A213 T12
| Grade | Mo | Cr | Si | Mn | C | P | S | |
| T12 | Min | 0.44 | 0.8 | 0.3 | 0.05 | |||
| Max | 0.65 | 1.25 | 0.5 | 0.61 | 0.15 | 0.025 | 0.025 |
Mechanical Properies of ASTM A213 T12
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) |
| T12 | ≥60(415) | ≥32(220) | ≥30 |
Wall Thickness Tolerance of ASTM A213
| Welded， Hot-Finished Tubes | Type | Wall Thickness Tolerance |
| OD Range | Average(-) | |
| 6~65mm(Incl.) | SMLS&WLD | (-12.5%，+20%) |
| >65mm | SMLS&WLD t/D≤5% | (-12.5%，+22.5%) |
| >65mm | SMLS&WLD t/D>5% | (-12.5%，+15%) |
