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Alloy Steel Seamless ASME SA335 P22 HFW Fin Tube With 11-13 CR Fin Strip

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Alloy Steel Seamless ASME SA335 P22 HFW Fin Tube With 11-13 CR Fin Strip

Name: Alloy Steel Seamless ASME SA335 P22 HFW Fin Tube With 1113 CR Fin Strip
Brand: Yuhong
Price: 1 USD

Quality Alloy Steel Seamless ASME SA335 P22 HFW Fin Tube With 11-13 CR Fin Strip wholesale

Brand Name : Yuhong

Model Number : ASME SA335 P22

Certification : ABS, BV, CCS, DNV, lR

Place of Origin : China

MOQ : 100kgs

Price : Negotiable

Payment Terms : L/C,T/T

Supply Ability : 1000 ton per month

Delivery Time : according to the qty

Packaging Details : Ply-wooden case with iron frame

Production Name : HFW Fin Tube

Finned Tube Packing : Ply-wooden Case With Iron Frame

Fin Type : HFW

Fin Grade : 11-13cr

Fin Thickness : 0.8mm-3mm

Base Tube Od : Customized

Standard : ASTM A335

Finspace : 9-13

Testing : HT, ET

Fin Height : 1mm-10mm

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Alloy Steel Seamless Tube, ASME SA335 P22, HFW Fin Tube with 11-13 CR Fin Strip

Product Introduction

The ASME SA335 P22 High Frequency Welded (HFW) Fin Tube is manufactured from alloy steel seamless tubing with helically welded 11–13% chromium steel fins. This design ensures excellent heat transfer, corrosion resistance, and mechanical durability in high-temperature environments, such as furnaces, heaters, and economizers.

Chemical Composition

Base Tube – ASME SA335 P22 (Alloy Steel)

Element	Content (%)
C	0.05–0.15
Mn	0.30–0.60
P	≤ 0.025
S	≤ 0.025
Si	0.50–1.00
Cr	1.90–2.60
Mo	0.87–1.13
Fe	Balance

Fin Material – 11–13Cr Steel (Typical Composition)

Element	Content (%)
Cr	11.0–13.0
C	≤ 0.12
Si	≤ 1.0
Mn	≤ 1.0
Fe	Balance

Mechanical Properties (SA335 P22)

Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 30%
Hardness	≤ 192 HB
Working Temp Range	Up to 600–650°C

Key Advantages

Excellent High-Temperature Strength
Suitable for continuous operation under high heat and pressure.
Outstanding Oxidation & Sulfidation Resistance
Chromium-rich fin material resists scaling and chemical attack in furnace atmospheres.
High Welding Integrity
HFW ensures tight fin attachment with low thermal contact resistance.
Efficient Heat Transfer
The extended surface area improves convective heat exchange efficiency.
Long Service Life
Withstands cyclic thermal stress and harsh flue gas exposure.

Typical Applications

Used in thermal and petrochemical industries, particularly in heat exchange equipment exposed to flue gases:

Furnace Convection Coils
Boiler Economizers
Superheaters and Reheaters
Heater Tubes in Refineries & Power Plants
Waste Heat Recovery Units (WHRU)

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