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ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace
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Return Bend

Heat Exchanger Tube

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ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace
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ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace

Brand Name: YUHONG
Model Number: ASME SA335 P9, HFW
MOQ: 100 KGS
Price: Negotiate
Packaging Details: Plywooden case with Iron Frame
Payment Terms: T/T,L/C
Detail Information
Product Description
Detail Information
Place of Origin:
CHINA
Certification:
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Product Name:
Finned Tube
Type:
High Frequency Welded Finned Tube
Application:
Heater Parts, Refrigeration Parts, Fluid Cooling
Dimensions:
88.9mm, 114.3mm, 168.3mm, Etc.
Length:
1-30000mm
Fin Height:
4-17mm
Tube Material:
Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc
Fin Material:
Carbon Steel, Stainless Steel And Alloy Steel Etc
Warranty:
6 Months
Welding Area:
According To Actual Demand
Supply Ability:
4150 Ton Per Month
Highlight:

SA335 fin pipe

,

Solid fin pipe

,

P9 fin tubes for heat exchangers

Product Description
ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace
Product Specifications
Attribute Value
Product name Finned Tube
Type High Frequency Welded Finned Tube
Application Heater Parts, Refrigeration Parts, Fluid Cooling
Dimensions 88.9mm, 114.3mm, 168.3mm, etc.
Length 1-30000mm
Fin height 4-17mm
Tube material Carbon Steel, Stainless Steel, Alloy Steel, Copper Etc
Fin material Carbon Steel, Stainless Steel And Alloy Steel Etc
Warranty 6 Months
Welding area According to actual demand
Product Overview

High-Frequency Welded ASME SA335 P9 Helical Finned Tubes are designed for extreme-temperature industrial furnace applications. These tubes combine chromium-molybdenum alloy durability with high-efficiency heat transfer, making them ideal for harsh environments.

Key Features
Material & Chemical Composition
  • Base Tube: ASME SA335 P9 Chromium-Molybdenum Alloy Steel (Cr: 8.5-9.5%, Mo: 0.90-1.10%)
  • Fin Material: High-grade stainless steel (AISI 304/316L) for corrosion resistance
Chemical Composition
Element Cr Mo C Mn Si
Composition 8.5-9.5% 0.90-1.10% ≤0.15% 0.30-0.60% 0.50-1.0%

Compliant with ASME SA335 and ASTM A213 standards.

Mechanical Properties
Property Value
Tensile Strength ≥620 MPa
Yield Strength ≥440 MPa
Elongation (A50) ≥20%
Operating Temperature -20°C to 650°C
Manufacturing Process
  • High-Frequency Welding (HFW): Achieves 95% weld integrity between fins and base tube through automated spiral winding
  • Post-Weld Treatment: Shot blasting + anti-corrosion coating (zinc or epoxy) for enhanced durability
  • Quality Control: 100% hydrostatic testing (1.5x design pressure) and ultrasonic inspection
Applications
  • High-Temperature Furnaces: Cement kilns, steel reheating systems
  • Heat Recovery Units: Boilers, economizers, and air preheaters
  • Oil & Gas: Crackers, reformers, and sulfur recovery units
Advantages
  • Superior Heat Transfer: 4-7x higher efficiency than smooth tubes due to spiral fin design
  • Corrosion Resistance: Withstands acidic/sulfur-rich environments (pH 2-12)
  • Long Service Life: 2-3x lifespan over conventional welded tubes
FAQ
Q1: What is the lead time for bulk orders?

A: Standard lead time is 4-6 weeks for 20-ft container loads.

Q2: Can these tubes withstand thermal cycling?

A: Yes, the ASME SA335 P9 alloy ensures stability under repeated heating/cooling.

Q3: Are certifications available?

A: We provide ASME, ISO 9001, and EN 10204-3.1 certifications.

Why Choose Yuhong?
  • 55 Production Lines: Fully automated HFW machines ensure consistent quality
  • Global Reach: Exported to 80+ countries with on-time delivery
  • Technical Support: 110+ engineers provide custom solutions for fin height (8-20mm) and pitch (4.5-15mm)
Contact Us

Email: jimmy@steelseamlesspipe.com

WhatsApp: +86 18892647377

Website: www.steelfintube.com

ASME SA335 P9 Alloy Steel High Frequency Welding Helical Solid Fin Pipe For Furnace 0
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Welding Fin Tube  

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