| Place of Origin: | China | 
| Brand Name: | YuHong | 
| Certification: | ABS, BV, ISO, ASTM, SGS | 
| Model Number: | ASME SA335 P9 Studded Finned Tube with AS Studs | 
| Minimum Order Quantity: | 200 KGS | 
|---|---|
| Price: | Negotiable | 
| Packaging Details: | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps | 
| Delivery Time: | 35-60 Days (Depend on Order's Quantity and Complexity) | 
| Payment Terms: | T/T,L/C AT SIGHT | 
| Supply Ability: | According to Clients' requirements | 
| Product Name: | Studded Tube / Studded Finned Tube | Base Tube Specification&Material: | ASME SA335 P9 | 
|---|---|---|---|
| Fin Material: | Alloy Steel | Base Tube O.D.: | 25-219 Mm | 
| Fin O.D.: | 5~20 Mm | Fin Height: | 5~35 Mm | 
| Fin Pitch: | 8~30 Mm | Processing Method: | Welding | 
| Application Industries: | Petrochemical And Refinery; Power Generation; HVAC Systems And So On | ||
| Highlight: | ASME SA335 longitudinal finned tube,SA335 P9 longitudinal finned tube,Longitudinal stainless steel finned tube | 
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A studded finned tube is a high-performance heat exchanger component featuring welded studs that significantly enhance heat transfer efficiency between fluids and gases. The stud design maximizes surface area while maintaining a compact footprint, making it ideal for demanding industrial applications.
| Element | Composition Range | 
|---|---|
| Carbon (C) | 0.15 max | 
| Manganese (Mn) | 0.30 - 0.60 | 
| Phosphorus (P) | 0.025 max | 
| Sulfur (S) | 0.025 max | 
| Silicon (Si) | 0.25 - 1.00 | 
| Chromium (Cr) | 8.00 - 10.00 | 
| Molybdenum (Mo) | 0.90 - 1.10 | 
| Nickel (Ni) | 0.40 max (optional) | 
| Vanadium (V) | 0.18 max (optional) | 
| Iron (Fe) | Balance | 
The 9% Cr-1% Mo composition provides exceptional high-temperature strength and oxidation resistance, while low carbon content ensures good weldability.
| 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 | 
| Impact Toughness (Charpy V-Notch, min at 21°C) | Typically required (varies by spec) | 
Supplied in normalized & tempered condition for optimal strength and ductility. Retains strength up to ~650°C (1200°F) and requires preheating (~200-300°C) with post-weld heat treatment (PWHT) to prevent cracking.
Contact Person: Sales Dept.
Tel: +8613819835483