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Studded Tube ASME SA335 P9 Alloy Steel For Heater Furnace

Categories Studded Tube
Brand Name: YuHong
Model Number: ASME SA335 P9 Studded Finned Tube with AS Studs
Certification: ABS, BV, ISO, ASTM, SGS
Place of Origin: China
MOQ: 200 KGS
Price: Negotiable
Payment Terms: T/T,L/C AT SIGHT
Supply Ability: According to Clients' requirements
Delivery Time: 35-60 Days (Depend on Order's Quantity and Complexity)
Packaging Details: Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps
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
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Studded Tube ASME SA335 P9 Alloy Steel For Heater Furnace

Studded Finned Tube ASME SA335 P9 with Alloy Steel Studs for Heater and Furnace
Product Specifications
AttributeValue
Product NameStudded Tube / Studded Finned Tube
Base Tube Specification & MaterialASME SA335 P9
Fin MaterialAlloy Steel
Base Tube O.D.25-219 mm
Fin O.D.5~20 mm
Fin Height5~35 mm
Fin Pitch8~30 mm
Processing MethodWelding
Application IndustriesPetrochemical and Refinery; Power Generation; HVAC systems
Product Overview

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.

Studded Finned Tube ASME SA335 P9 with alloy steel studs for industrial heat exchangers
Base Tube Material: ASME SA335 P9
Chemical Composition (Weight %)
ElementComposition 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.
Mechanical Properties
PropertyValue
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.
Studded Finned Tube Design Advantages
  • Increased Surface Area: Studs significantly enhance heat transfer surface for superior thermal efficiency
  • Compact Design: Maximizes heat transfer capacity without increasing physical footprint
  • High-Temperature Performance: Resilient in extreme conditions up to 650°C (1200°F)
  • Reduced Fouling: Smooth stud surfaces minimize deposit buildup compared to traditional fins
  • Enhanced Durability: Superior erosion/corrosion resistance in harsh industrial environments
Industrial Applications
  • Power Generation: Heat Recovery Steam Generators (HRSGs), Fluidized Bed Boilers, Superheaters
  • Petrochemical: Fired Heaters, Catalytic Cracking Units (FCCU), Coker Units
  • Waste Treatment: Waste-to-Energy Plants, Air Preheaters (APH)
  • Chemical Processing: Sulfuric Acid Plants, Ammonia Production, Syngas Coolers
  • Heavy Industry: Cement Clinker Coolers, Blast Furnace Gas Ducts
China Studded Tube ASME SA335 P9 Alloy Steel For Heater Furnace factory
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