ASTM A335 P9 Studded Tube, With 11Cr Studs Material , Fired Heater , Furnace Application
Studded fin tubes are specialized metal tubes with welded studs arranged in specific formations to enhance heat transfer efficiency. These tubes are widely used in boilers, refineries, and heat exchangers where increased surface area and corrosion resistance are required.
| Attribute | Value |
|---|---|
| Base Pipe | ASTM A335 P9, ASME SA335 P9, ASTM A213 T9, ASME SA213 T9 |
| Fin Type | Studded Tube, Pin Tube, Solid Tube |
| Fin Material | SS409, SS410, 1Cr13, 2Cr13, 11Cr, 13Cr |
| Testing | Hammer Hitting Test |
| Application | Boiler, Fired Heater Coils, Radiator, Convection Tube Coils |
| Studded Tube OD | 50~325mm |
| Component | General Materials | Popular ASTM/ASME Materials |
|---|---|---|
| Bare Tube Material | Carbon Steel, Alloy Steel, Heat Resistant Steel, Stainless Steel |
1. Carbon Steel: A106 Gr. B
2. Stainless Steel: TP304/304L, TP316/TP316L, TP347
3. Alloy Steel: P5, T5, P9, T9, T11, T22
|
| Studs Material | Carbon Steel, Stainless Steel |
1. Carbon Steel
2. Stainless Steel: TP409/410, TP304/304L, TP316/TP316L, TP321/TP321L
|
- Heat Exchangers
- Boilers
- Air Coolers
- Petrochemical Refineries
- Power Plants
- Chemical Industries
- Steel Plants
Studded fin tubes feature automatically resistance-welded steel studs that create high-quality forged welds. The process allows combination of any grade for studs and tubes, including carbon, low alloy, stainless steel, and high nickel alloys. Alloy steel tubes are stress-relieved after studding according to relevant specifications.
These tubes serve as an alternative to fin tubes in heat exchangers, particularly in petrochemical applications where surfaces are exposed to corrosion and aggressive environments.
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