Alloy 20 Plates, Sheets & Coils – ASTM B463 UNS N08020 | ASC LLP
ASC LLP is a trusted Alloy 20 Plate Supplier offering top-quality Alloy Plates, Alloy 20 Sheets, and Alloy 20 Coils for industrial use worldwide. Known for corrosion resistance and high strength, Alloy 20, also called Carpenter 20 or Incoloy® 20, is a superalloy designed to handle aggressive environments, especially sulfuric acid.
Whether you’re looking for ASTM B463 UNS N08020 Sheets, Polished Alloy 20 Plates, Alloy 20 Hot Rolled Plates, or UNS N08020 Strip and Diamond Plates, ASC LLP is your one-stop destination. As a leading Alloy 20 Sheet Stockist, we provide fast delivery, competitive pricing, and quality assurance across all products.
What is Alloy 20?
Alloy 20, also known as UNS N08020, is a nickel-iron-chromium alloy with additions of copper and molybdenum. It was specially developed to withstand sulfuric acid and other harsh chemicals. It offers excellent resistance to corrosion, stress cracking, and pitting.
Because of these properties, Alloy 20 Plates and Sheets are often used in chemical processing, power plants, pharmaceuticals, food and beverage processing, and marine applications.
Types of Alloy 20 Products We Offer
1. Alloy 20 Plates: Our Alloy 20 Plates are available in a range of thicknesses and finishes, including Polished Alloy 20 Plates and Alloy 20 Hot Rolled Plates. These plates are ideal for fabrication and engineering structures exposed to chemical and acidic environments.
2. Alloy 20 Sheets: We supply high-quality Alloy 20 Sheets, including ASTM B463 UNS N08020 Sheets, known for superior formability and weldability. These sheets are used in tanks, vessels, and piping systems.
3. Alloy 20 Coils: Our precision-finished Alloy 20 Coils are used in applications requiring easy fabrication and durability. These coils offer consistent performance under corrosive conditions.
4. ASTM B463 UNS N08020 Strip: UNS N08020 Strips are thin, narrow steel strips perfect for gaskets, lining materials, and industrial seals.
5. ASTM B463 UNS N08020 Diamond Plate: Our Alloy 20 Diamond Plates come with raised surface patterns to offer traction and anti-slip properties. Perfect for flooring and walkway systems in industrial environments.
Key Features of Alloy 20 Plates, Sheets & Coils
- Excellent resistance to sulfuric acid and chloride environments
- Superior corrosion resistance in chemical and food processing industries
- High mechanical strength and durability
- Great weldability and formability
- Resists pitting, crevice corrosion, and stress corrosion cracking
- Can be cold worked or hot formed
- Available in a variety of finishes, sizes, and thicknesses
Schedule & Size Chart for Alloy 20 Plate
| Thickness (mm) | Width (mm) | Length (mm) | Standard Plate Size (inches) | Weight (kg/m²) |
| 3.0 | 1000 – 2000 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 23.94 |
| 5.0 | 1000 – 2000 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 39.90 |
| 6.0 | 1000 – 2500 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 47.88 |
| 8.0 | 1000 – 2500 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 63.84 |
| 10.0 | 1000 – 2500 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 79.80 |
| 12.0 | 1000 – 2500 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 95.76 |
| 20.0 | 1000 – 2500 | 2000 – 6000 | 48″ x 96″, 60″ x 120″ | 159.60 |
| Custom sizes | Available | Available | Cut-to-size | On request |
Specifications Chart for UNS N08020 Plates
| Standard | Description |
| ASTM B463 | Standard Specification for UNS N08020 Plate, Sheet, and Strip |
| ASME SB-463 | Boiler and Pressure Vessel Code Equivalent |
| UNS Designation | N08020 |
| Werkstoff Number | 2.4660 |
| Trade Name | Alloy 20 / Carpenter 20 / Incoloy® 20 |
| Forms Available | Plate, Sheet, Coil, Strip, Diamond Plate |
| Manufacturing Methods | Hot Rolled (HR), Cold Rolled (CR), Polished, Pickled |
| Surface Finishes | 2B, BA, No.1, No.4, Polished, Diamond |
Alloy 20 Mechanical Properties
| Property | Value |
| Tensile Strength | ≥ 551 MPa |
| Yield Strength | ≥ 241 MPa |
| Elongation | ≥ 30% |
| Hardness (Brinell) | ≤ 217 HBW |
Alloy 20 Chemical Composition (UNS N08020)
| Element | Composition (%) |
| Nickel | 32.0 – 38.0 |
| Chromium | 19.0 – 21.0 |
| Iron | Balance |
| Copper | 3.0 – 4.0 |
| Molybdenum | 2.0 – 3.0 |
| Carbon | 0.06 max |
| Manganese | 2.0 max |
| Silicon | 1.0 max |
Physical Properties Chart of ASTM B463 UNS N08020 Plate
| Property | Value |
| Density | 7.98 g/cm³ (7980 kg/m³) |
| Melting Point | 1357 – 1430 °C (2475 – 2600 °F) |
| Tensile Strength (min) | 551 MPa (80 ksi) |
| Yield Strength (min) | 241 MPa (35 ksi) |
| Elongation (% in 50mm) | 30% |
| Hardness (Brinell) | ≤ 217 HBW |
| Modulus of Elasticity | ~195 GPa (28.3 x 10⁶ psi) |
| Electrical Resistivity | 1.1 μΩ·m (at 20 °C) |
| Thermal Conductivity | 10.6 W/m·K (at 100 °C) |
| Specific Heat Capacity | 0.45 J/g·K |
| Magnetic Permeability | Very low / Non-magnetic |
Applications of UNS N08020 Sheet
Thanks to their excellent corrosion resistance and durability, Alloy 20 Plates and UNS N08020 Sheets are widely used in:
- Chemical Processing Industries
- Food and Beverage Industry
- Pharmaceutical Industry
- Power Generation and Desalination Plants
- Marine Engineering
- Pulp and Paper Industry
Why Choose ASC LLP as Your Alloy 20 Plate Supplier?
As one of India’s top Alloy 20 Plate Suppliers and UNS N08020 Sheet Stockists, ASC LLP offers:
- High-quality certified materials complying with ASTM B463 standards
- Competitive pricing and ready stock availability
- Custom cut-to-size services
- Worldwide shipping with secure packaging
- Expertise in Incoloy® 20 Plate supply
- Quick delivery with proper documentation and test reports
We ensure all ASTM B463 UNS N08020 Plates, Sheets, and Coils are quality checked, dimensionally accurate, and suitable for critical environments.
Certifications & Quality Standards
All Alloy 20 products at ASC LLP are provided with:
- EN 10204 3.1 / 3.2 certification
- Mill Test Reports (MTRs)
- Third-party inspection approvals (TUV, Lloyds, SGS)
- Compliance with ASTM B463, ASME SB 463, and international quality norms
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality Alloy 20 Plates. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
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