Alloy Steel Seamless Serrated HFW Fin Tube Detailed Product Description

Welded Helical Serrated Finned Tubes for heat exchanger

Aluminum: CS Bare Tube: A213 T11 T12
Packing: Ply-Wooden Case, Iran Case Fin Thick: 0.8-3
Fin Size: As Per Client’s Drawing Payment: T/T;L/C
Highlight: Refinery Alloy Steel Seamless Serrated Fin Tube

Serrated HFW Fin Tube

Alloy Steel Serrated Fin Tube

 

ASTM A213 T11 Alloy Steel Sesmless Tube Serrated HFW Fin Tube For Refinery

Brief Description

The ASTM A213 T11 serrated HFW finned tube is a high-performance heat transfer element designed for refinery heaters, boilers, and economizers. The base tube is made from low alloy steel (T11), and serrated carbon steel or stainless steel fins are welded using High Frequency Welding (HFW). This combination ensures excellent heat resistance, mechanical strength, and enhanced heat transfer efficiency.

1. Chemical Composition – Base Tube (ASTM A213 T11)

Element Content (%)
Carbon (C) 0.05–0.15
Manganese (Mn) 0.30–0.60
Phosphorus (P) ≤ 0.025
Sulfur (S) ≤ 0.025
Chromium (Cr) 1.00–1.50
Molybdenum (Mo) 0.44–0.65

Serrated Finned Tube For Heat Exchanger-Serrated Fin Tube CS From China

2. Mechanical Properties – Base Tube (ASTM A213 T11)

Property Value
Tensile Strength ≥ 415 MPa
Yield Strength ≥ 205 MPa
Elongation ≥ 30%
Hardness ≤ 85 HRB
Max Temperature Up to 580°C

3. Alloy Steel Seamless Serrated HFW Fin Tube Advantages

  • Superior heat transfer due to serrated fins which break boundary layers and improve turbulence.

  • Excellent high-temperature resistance from T11 alloy base material.

  • Strong welding bond from HFW ensures durability under thermal cycling and vibration.

  • Corrosion-resistant in harsh refinery environments.

  • Longer lifespan compared to traditional smooth finned tubes.

4. Alloy Steel Seamless Serrated HFW Fin Tube Applications in Refinery

These finned tubes are ideal for convection sections and economizer areas in:

  • Crude oil heaters

  • Vacuum distillation unit furnaces

  • Fluid catalytic cracking units (FCCU)

  • Steam generation sections

  • Gas heat recovery units