Incoloy 28 Uns N08028 Nickel-Iron-Chromium Alloy Ring High Corrosion Resistant Alloy for Acidic and Chloride Environments

Product Description

 

Product Description

 

 

INCOLOY 28 (UNS N08028) is a nickel-iron-chromium alloy with molybdenum and copper additions, offering excellent resistance to a wide range of corrosive environments.
It was developed to provide superior resistance to strong acids, such as sulfuric acid and phosphoric acid, and to chloride-induced stress corrosion cracking.

The alloy's balanced composition of nickel, chromium, and molybdenum ensures strong performance in oxidizing and reducing media, while maintaining good mechanical strength and weldability.
INCOLOY 28 is a preferred material in chemical processing, oil & gas, and marine industries where durability and reliability are critical.

Key Features:

• Outstanding resistance to sulfuric, phosphoric, and nitric acids

• Excellent resistance to chloride stress-corrosion cracking and pitting

• Suitable for both oxidizing and reducing environments

• High mechanical strength and good ductility

• Easy to fabricate, form, and weld

Typical Applications:

• Chemical and petrochemical processing equipment

• Heat exchangers and evaporators

• Oil & gas industry piping systems

• Marine and seawater applications

• Flue gas scrubbers and pollution control units

Chemical Composition (Typical, %):

Element	Ni	Cr	Fe	Mo	Cu	C	Mn	Si	S	P
Content	30-34	26-28	Balance	3-4	0.6-1.0	≤0.02	≤2.5	≤0.7	≤0.015	≤0.03

Standards:

• UNS N08028

• ASTM B668 / B709 / B829 / B709 / B566

• DIN 1.4563 / Alloy 28 / X1NiCrMoCu31-27-4

Mechanical Properties (Annealed Condition):

Property	Typical Value
Tensile Strength	≥500 MPa
Yield Strength (0.2% Offset)	≥214 MPa
Elongation	≥35%
Working Temperature	≤600°C

 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

Key Advantages:

• Controlled Properties: Tailored for specific applications, offering controlled expansion, high strength, or high electrical conductivity.
• Dimensional Stability: Excellent flatness, accuracy, and stability, even under thermal cycling.
• High Durability: Resistant to thermal, mechanical, and magnetic stresses, making them suitable for critical components in sensitive environments.

Factory workshop

Product application

Packaging & Shipping

FAQ

 

Q1: What makes INCOLOY 28 different from INCOLOY 825?
A1: INCOLOY 28 has higher chromium (26-28%) and molybdenum (3-4%) content, giving it better resistance to strong acids and chloride-induced corrosion compared to INCOLOY 825.

Q2: What environments is INCOLOY 28 suitable for?
A2: It performs well in sulfuric acid, phosphoric acid, seawater, and brine environments, and is ideal for use in oil & gas and chemical process plants.

Q3: Is INCOLOY 28 easy to weld?
A3: Yes. It can be welded by TIG, MIG, or resistance welding, and weld joints maintain corrosion resistance similar to the base metal.

Q4: What product forms are available?
A4: Bars, rods, sheets, plates, tubes, rings, flanges, fittings, and customized forgings.

Q5: What certifications can be provided?
A5: Full EN 10204 3.1 / 3.2 inspection certificates can be supplied, including chemical composition, mechanical testing, and corrosion test data.

Q6: Are inspection certificates provided?
A6: Yes, EN 10204 3.1 / 3.2 certificates are available, including full chemical analysis and mechanical test reports.

Q7: What is the delivery time?
A7: Usually 7-15 working days for stock materials, and 20-30 days for custom-machined or special-size rings.

Q8: Do you offer price discounts for large quantities?
A8: Yes. We provide big price discounts for bulk orders or long-term cooperation projects. Please contact us for a detailed quotation.

Q9. How can I contact you for more information?

You can contact us through the following methods
Online support: Visit our website for live chat
Address: 300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China

We look forward to providing you with high-quality products and services!
If you have any other questions, feel free to contact us, and we will do our best to assist you!