Incoloy 28 (UNS N08028) High Corrosion-Resistant Nickel Alloy Fin Plate for Aggressive Service

Product Description

Product Description

 

INCOLOY 28 fin plate is produced from a high-alloy austenitic nickel-iron-chromium alloy with molybdenum and copper additions, designed to provide outstanding resistance to both acidic and chloride-containing environments. The alloy exhibits excellent resistance to general corrosion, pitting, crevice corrosion, and stress corrosion cracking, making it well suited for finned components operating under aggressive service conditions.

INCOLOY 28 fin plate combines superior corrosion resistance with good mechanical strength and fabrication performance, allowing it to be formed into thin and complex fin geometries while maintaining dimensional stability during long-term operation. Its good weldability and stable austenitic structure make it an ideal material for heat transfer equipment, especially where fins are exposed to corrosive media and temperature fluctuations.

 

Typical Chemical Composition (wt.%)

Element	Ni	Cr	Fe	Mo	Cu	Mn	Si	C	N
Content	30.0-32.0	26.0-28.0	Balance	3.0-4.0	0.6-1.4	≤2.00	≤1.00	≤0.020	≤0.030

 

Typical Physical & Mechanical Properties (Reference)

Property	Value
Density	~8.00 g/cm³
Melting Range	1350-1380 °C
Tensile Strength (RT)	≥500 MPa
Yield Strength (RT)	≥220 MPa
Elongation	≥35%

 

Key Features for Fin Plate Applications

• Excellent resistance to acid and chloride corrosion

• High resistance to stress corrosion cracking

• Suitable for thin fin structures and complex fin designs

• Good weldability for finned and brazed assemblies

 

Typical Applications

• Heat exchangers and finned heat transfer equipment

• Chemical and petrochemical processing systems

• Offshore, marine, and desalination equipment

• Corrosive environments requiring long-term thermal performance

 Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.

Detailed Photos

• Form: Finned / Folded heat sink plate

• Fin Type: Straight, wavy, or custom folded fins

• Fin Height: 1-50 mm (customizable)

• Fin Pitch: 1-20 mm (depending on application)

• Plate Thickness: 0.5-20 mm (customizable)

• Surface Finish: Polished, sandblasted, or as per client requirement

Special Features:

• Folded fin design maximizes surface area for heat dissipation

• High corrosion resistance even in harsh chemical environments

• Can withstand high-temperature operation (up to 635°C / 1175°F)

• Weldable, bendable, and machinable for integration into complex assemblies

 

4. Typical Applications

• Chemical Industry: Heat exchangers, evaporators, reactors

• Petrochemical & Oil Refining: Cooling fins for chemical tanks, piping, and heat transfer systems

• Pharmaceutical: Corrosion-resistant heat dissipation components

• Industrial Thermal Systems: High-efficiency heat sinks, furnace components

• Marine & Power: Equipment exposed to chloride, brine, or aggressive media

 

Factory workshop

Product application

FAQ

FAQ - HASTELLOY   Finned / Folded Plates

 1. What is HR-120 alloy mainly used for?

HR-120 is used for high-temperature furnace parts, petrochemical heaters, burner components, heat-treat fixtures, and industrial thermal processing equipment requiring long-term stability.

2. How does HR-120 compare to Haynes 230 or 214?

• HR-120 excels in carburization resistance and high-temperature stability.

• Haynes 230 provides overall stronger mechanical properties.

• Haynes 214 is superior in oxidation resistance above 1100°C.

3. Is HR-120 suitable for welding?

Yes, HR-120 exhibits good weldability using standard nickel-base welding methods. Proper heat input control is recommended.

4. What are the advantages of HR-120 in petrochemical plants?

Its resistance to sulfidation, oxidation, and carburization extends component lifetime in reformers, cracking furnaces, radiant tubes, and heater sections.

5. Can HR-120 be supplied with EN/ASTM/3.1 certificates?

Yes, it can be supplied with EN 10204 3.1, ASTM, ASME-compliant certificates depending on customer requirements.