Name: Serrated Fin Tubes ASTM A335 P22 Base & 1Cr13 Fins
Brand: Yuhong Group Co.,Ltd
SKU: N/A
Price: 100,000.00 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

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Serrated Fin Tubes ASTM A335 P22 Base & 1Cr13 Fins

Product Details:

Place of Origin:	China
Brand Name:	YUHONG
Certification:	ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834
Model Number:	N/A

Payment & Shipping Terms:

Minimum Order Quantity:	500kg
Price:	To be discussed
Packaging Details:	Plywood case
Delivery Time:	50-120 days
Payment Terms:	L/C,T/T
Supply Ability:	5000 meters/day

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Detailed Product Description

Product:

Serrated Fin Tubes

Material Grade:

Base Tube:ASTM A335 P22; Fin Tube:1Cr13

Application:

Industrial Boiler Economizers And Superheaters

Package:

Plywood Case

Highlight:

Serrated Fin Tubes ASTM A335 P22

1Cr13 Finned Tubes for heat exchangers

ASTM A335 P22 serrated fin tubes

Serrated Fin Tubes (ASTM A335 P22 / 1Cr13)

Overview

Our Serrated Fin Tubes are engineered for maximum heat transfer efficiency in industrial boilers, superheaters, and heat exchangers. The base tube, manufactured from ASTM A335 P22 alloy steel, ensures high-temperature strength and durability, while the fins made of 1Cr13 stainless steel provide excellent corrosion resistance and maintain structural integrity under prolonged high-temperature operation. The serrated fin design enhances turbulence across the gas flow, improving thermal efficiency compared with conventional straight fins.

Applications:

Industrial boiler economizers and superheaters
Air-cooled heat exchangers
Petrochemical and refinery process heat recovery
Waste heat recovery boilers (WHRB)
Power plants and thermal energy systems

Standard Size Ranges

Parameter	Typical Range
Base Tube OD	25 mm – 76 mm
Tube Wall Thickness	2.77 mm – 10 mm
Fin Height	8 mm – 25 mm
Fin Thickness	0.8 mm – 2.0 mm
Fin Pitch	3.5 mm – 10 mm
Finned OD	Up to 150 mm
Tube Length	Up to 18 meters
Fin Density	Customizable per thermal design

Custom dimensions are available to meet project-specific requirements.

Chemical Composition

Base Tube – ASTM A335 P22

Element	Composition (%)
Carbon (C)	0.05 – 0.15
Manganese (Mn)	0.30 – 0.60
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.025
Silicon (Si)	≤ 0.50
Chromium (Cr)	1.90 – 2.60
Molybdenum (Mo)	0.87 – 1.13

Fin Material – 1Cr13 Stainless Steel

Element	Composition (%)
Carbon (C)	≤ 0.12
Chromium (Cr)	12 – 14
Manganese (Mn)	≤ 1.00
Silicon (Si)	≤ 1.00
Phosphorus (P)	≤ 0.04
Sulfur (S)	≤ 0.03

The combination ensures high creep strength, oxidation resistance, and corrosion protection in high-temperature flue gas conditions.

Mechanical Properties

Base Tube – ASTM A335 P22

Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 30%
Hardness	≤ 163 HBW
Max Operating Temp	Up to 600°C

Fins – 1Cr13 Stainless Steel

Property	Value
Tensile Strength	520 – 700 MPa
Yield Strength	≥ 205 MPa
Elongation	≥ 12%
Hardness	187 – 229 HB

Inspection & Quality Assurance

All serrated fin tubes undergo rigorous inspection to ensure compliance with industrial standards:

Raw Material Verification
- Mill Test Certificate (MTC) for both tube and fins
- Chemical composition verification
Dimensional Inspection
- Tube OD, wall thickness, and length
- Fin height, thickness, pitch, and overall finned OD
- Straightness and alignment checks
Weld & Fin Inspection
- Visual weld inspection for fin attachment
- Ultrasonic Testing (UT) of base tube
- Eddy Current Testing (ECT) for fin integrity
Pressure Testing (Optional)
- Hydrostatic or pneumatic testing upon customer request
Documentation Provided
- Material Test Certificate (MTC)
- Dimensional inspection report
- NDT inspection report
- Heat treatment records (if applicable)