Alloy 20 Sheets & Plates

Alloy 20 Sheets & Plates Manufacturer, Supplier & Exporter in Mumbai, India

Virami Steel Hub is a leading manufacturer, supplier, stockist, and exporter of premium-quality Alloy 20 Sheets & Plates in Mumbai. We specialize in delivering high-performance nickel-iron-chromium alloy products designed for excellent corrosion resistance, strength, and long service life in aggressive industrial environments.

Our Alloy 20 sheets and plates are manufactured using top-grade raw materials and advanced rolling processes to ensure precise dimensions, superior finish, and outstanding durability. We supply to domestic and global markets including the USA, Europe, Middle East, Africa, and Southeast Asia.

With a strong commitment to quality and innovation, Virami Steel Hub ensures reliable solutions for critical applications.

What are Alloy 20 Sheets & Plates?

Alloy 20 Sheets & Plates are corrosion-resistant materials made from a nickel-iron-chromium alloy, also known as UNS N08020.

Alloy 20 is specifically designed to provide exceptional resistance to sulfuric acid and other aggressive chemicals, making it ideal for chemical processing industries.

Key Functions:

  • Provide resistance to sulfuric acid corrosion
  • Maintain strength in harsh chemical environments
  • Ensure long-term durability and performance
  • Reduce maintenance and downtime

Chemical Composition of Alloy 20

Alloy 20 has a unique composition that enhances corrosion resistance.

Typical Composition:

  • Nickel (Ni): 32% – 38%
  • Chromium (Cr): 19% – 21%
  • Iron (Fe): Balance
  • Molybdenum (Mo): 2% – 3%
  • Copper (Cu): 3% – 4%
  • Niobium (Nb): Stabilized

Copper content improves resistance to sulfuric acid, while molybdenum enhances resistance to pitting and crevice corrosion.


Key Features of Alloy 20 Sheets & Plates

  • Excellent resistance to sulfuric acid and acidic environments
  • Good resistance to pitting and crevice corrosion
  • High strength and durability
  • Resistance to stress corrosion cracking
  • Good weldability and fabrication
  • Suitable for both oxidizing and reducing environments
  • Long service life in harsh chemical conditions

Mechanical Properties

Alloy 20 offers strong mechanical performance:

  • Tensile Strength: ~550 MPa
  • Yield Strength: ~240 MPa
  • Elongation: ~30%
  • Hardness: Moderate

These properties ensure reliability under pressure and chemical exposure.


Physical Properties

  • Density: ~8.1 g/cm³
  • Melting Range: ~1350–1400°C
  • Modulus of Elasticity: ~200 GPa
  • Thermal Conductivity: ~11 W/m·K
  • Thermal Expansion: Moderate

Corrosion Resistance

Alloy 20 Sheets & Plates provide excellent resistance to:

  • Sulfuric acid (primary advantage)
  • Phosphoric acid
  • Nitric acid (moderate resistance)
  • Chloride-induced stress corrosion cracking
  • Industrial chemicals and pollutants

It performs better than standard stainless steels like 316L in chemical environments.


Heat Treatment

Alloy 20 is typically supplied in solution annealed condition.

Heat Treatment Process:

  • Solution Annealing: ~925–980°C
  • Rapid cooling

This enhances corrosion resistance and mechanical properties.


Weldability

Alloy 20 offers good weldability.

Welding Methods:

  • TIG (GTAW)
  • MIG (GMAW)

Best Practices:

  • Use suitable filler materials
  • Maintain clean conditions
  • Avoid contamination

Machinability

  • Moderate machinability
  • Use carbide tools
  • Maintain low cutting speeds
  • Apply coolant

Standards & Specifications

Alloy 20 Sheets & Plates are manufactured according to:

  • ASTM B463
  • ASTM B464
  • ASME SB463
  • ASME SB464

These standards ensure high quality and international acceptance.


Available Forms of Alloy 20

We offer:

  • Sheets
  • Plates
  • Coils
  • Strips

Surface Finish Options:

  • Hot Rolled (HR)
  • Cold Rolled (CR)
  • Pickled
  • Polished

Sizes & Specifications

  • Thickness: 0.5 mm to 100 mm
  • Width: Up to 2000 mm
  • Length: Custom sizes available

Applications of Alloy 20 Sheets & Plates

Alloy 20 is widely used in industries requiring high corrosion resistance.

  • Chemical Processing Industry: Used in tanks, reactors, and piping systems handling acids.
  • Petrochemical Industry: Used in equipment exposed to corrosive chemicals.
  • Pharmaceutical Industry: Used in clean and corrosion-resistant environments.
  • Oil & Gas Industry: Used in chemical handling systems.
  • Power Plants: Used in flue gas desulfurization systems.

Quality Testing & Inspection

Each product undergoes strict quality checks:

  • Chemical composition testing
  • Mechanical testing
  • Dimensional inspection
  • Surface quality testing
  • Positive Material Identification (PMI)

Mill Test Certificates (MTC) are provided.


Packaging & Delivery

  • Export-grade wooden packaging
  • Waterproof wrapping
  • Proper labeling and traceability
  • Safe and timely worldwide delivery

Why Choose Virami Steel Hub?

  • Trusted Alloy 20 supplier in Mumbai
  • Extensive inventory and ready stock
  • Competitive pricing
  • Custom manufacturing solutions
  • International quality standards
  • Strong export network
  • Dedicated customer support

Conclusion

Alloy 20 Sheets & Plates (UNS N08020) are a premium solution for industries requiring exceptional resistance to sulfuric acid and aggressive chemicals. Their strength, durability, and corrosion resistance make them ideal for chemical processing and industrial applications.

Virami Steel Hub delivers high-quality Alloy 20 products that ensure long-term performance, safety, and efficiency in critical environments.


FAQs – Alloy 20 Sheets & Plates (AEO Optimized)

(1)What are Alloy 20 sheets used for?

They are used in chemical processing, pharmaceuticals, petrochemicals, and acid-handling applications.

It is a nickel-based alloy (UNS N08020) designed for corrosion resistance, especially against sulfuric acid.

It offers superior resistance to sulfuric acid and aggressive chemicals compared to stainless steels like 316L.

Yes, it is specifically designed for sulfuric acid environments.

Yes, it can be welded using TIG and MIG processes.

Chemical, pharmaceutical, petrochemical, oil & gas, and power industries use Alloy 20./p>

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