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| Brand Name: | YuHong |
| Model Number: | ASTM A335 P11 HFW Helical Serrated Finned Tube |
| MOQ: | 2PCS |
| Price: | Negotiable |
| Payment Terms: | T/T, L/C AT SIGHT |
| Supply Ability: | According to Clients' requirements |
| Attribute | Value |
|---|---|
| Product Name | Alloy Steel HFW Serrated Finned Tube |
| Bare Tube Specification & Material | ASTM A335 P11 |
| Bare Tube Length | Custom-sized |
| Bare Tube O.D. | 25mm~219mm |
| Fin Material | Gr.11 |
| Fin Height | 0.375'' to 1.25'' |
| Fin Segment | 5/32'' or 5/16'' |
| Fin Pitch | 1 to 7 fins per inch |
| Application | Used in boilers, superheaters, economizers, fired heaters, reformers, and cracking furnaces |
The HFW Helical Serrated Finned Tube is a specialized heat exchange component where "HFW" denotes the High Frequency Welding process used to securely attach fins to the tube. This advanced welding technique ensures superior bond strength and thermal performance.
| Element | Composition |
|---|---|
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) (max) | 0.025 |
| Sulfur (S) (max) | 0.025 |
| Silicon (Si) | 0.50 - 1.00 |
| Chromium (Cr) | 1.00 - 1.50 |
| Molybdenum (Mo) | 0.44 - 0.65 |
| Nickel (Ni) (max) | 0.25 |
| Vanadium (V) (max) | 0.08 |
Note: Trace residual elements are restricted to maintain weldability and creep resistance.
| Property | Value |
|---|---|
| Tensile Strength (min) | 415 MPa (60,000 psi) |
| Yield Strength (min) | 205 MPa (30,000 psi) |
| Elongation (min, % in 50mm) | 30% |
| Hardness (max, Brinell HBW) | 179 HBW |
