Incoloy Alloy 020/N08020/2.4660/Alloy 20cb3 Bar/Rod/Wire/Forging/Plate/Strip

Product Specification

Incoloy Alloy 020/N08020/2.4660/Alloy 20cb3 Bar/Rod/Wire/Forging/Plate/Strip With Excellent Performance In Power Generation

Incoloy Alloy 020 (UNS N08020 / W.Nr. 2.4660 / Alloy 20cb3) is a nickel-iron-chromium alloy with copper and molybdenum, designed for superior corrosion resistance in acidic environments. It resists sulfuric acid, chloride stress corrosion cracking, and pitting. Available in bar, rod, wire, forging, plate, and strip, it is widely used in chemical processing, food processing, pharmaceuticals, and marine applications. The alloy meets ASTM B463, B464, B468, B471, and B472 standards. It offers excellent mechanical strength and weldability, making it ideal for heat exchangers, piping, storage tanks, and reactors. Its high nickel and molybdenum content enhance resistance to reducing environments, ensuring durability in harsh conditions.

Trade Code

Incoloy Alloy 020 (UNS N08020 / W.Nr. 2.4660 / Alloy 20cb3) – Key Features

Alloy 020 is a nickel-iron-chromium austenitic alloy with additions of molybdenum and copper, designed for excellent corrosion resistance in harsh chemical environments. It is widely used in industries such as chemical processing, power generation, and marine applications.

Key Features:

✅ Outstanding Corrosion Resistance

• Superior resistance to sulfuric acid, making it ideal for acid processing industries.
• Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC).
• Resistant to nitric acid, phosphoric acid, and chloride-containing environments.

✅ High Strength & Toughness

• Retains good mechanical properties at both ambient and elevated temperatures.
• Strong resistance to intergranular corrosion in welded conditions.

✅ Excellent Weldability & Fabrication

• Easily welded using conventional welding techniques such as TIG, MIG, and SMAW.
• Readily formed into complex shapes without losing mechanical integrity.

✅ Heat & Oxidation Resistance

• Suitable for use in moderately high temperatures.
• Maintains stability and mechanical strength in oxidizing environments.

✅ Available Product Forms

• Bar/Rod: Used in shafts, pump components, and fasteners.
• Wire: Ideal for welding applications and corrosion-resistant mesh.
• Forging: Suitable for high-pressure chemical and petrochemical applications.
• Plate/Strip: Used in storage tanks, heat exchangers, and reactors.
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Incoloy Alloy 020 (UNS N08020 / W.Nr. 2.4660 / Alloy 20cb3) Applications

Incoloy Alloy 020 is a nickel-iron-chromium alloy with copper and molybdenum, designed for superior corrosion resistance, particularly in sulfuric acid environments. Its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking makes it ideal for various industries.

Product Forms:

• Bar/Rod – Used in structural and mechanical applications requiring corrosion resistance.
• Wire – Suitable for welding applications and corrosion-resistant fasteners.
• Forging – Applied in high-stress environments, such as chemical processing equipment.
• Plate/Sheet/Strip – Used in manufacturing components exposed to acidic environments.

Applications:

1. Chemical and Petrochemical Processing

• Sulfuric acid storage tanks and piping
• Heat exchangers and evaporators
• Reactors and condensers
• Acetic acid production equipment

2. Power Generation

• Heat recovery steam generators (HRSG)
• Corrosion-resistant piping in power plants

3. Food and Pharmaceutical Industry

• Equipment used in the production of pharmaceuticals, as it resists contamination
• Food processing equipment requiring high corrosion resistance

4. Marine and Offshore Applications

• Seawater-cooled heat exchangers
• Marine exhaust systems

5. Aerospace Industry

• Corrosion-resistant fasteners and structural components

Standards and Specifications:

• Rod and Bar: ASTM B473 / ASME SB473
• Plate, Sheet, and Strip: ASTM B463 / ASME SB463
• Seamless Pipe and Tube: ASTM B729 / ASME SB729
• Welded Pipe and Tube: ASTM B464 / ASME SB464
• Welding Wire: AWS A5.14 ERNiCrMo-3

Due to its outstanding performance in aggressive environments, Alloy 020 is widely used in industries where corrosion resistance is a primary requirement.