Alloy 20 Plates
Alloy 20 Plates are a premium grade of stainless steel specifically designed to resist corrosion and withstand high temperatures and acidic environments. Known for their exceptional durability and versatility, Alloy 20 Plates are extensively used in various industries, including chemical processing, pharmaceutical production, food and beverage manufacturing, and more.
What is Alloy 20 Plates?
Alloy 20 Plates, also known as Carpenter 20, is a nickel-iron-chromium austenitic alloy with additions of copper and molybdenum. This unique composition provides excellent resistance to sulfuric acid and many other aggressive environments. Alloy Plates 20 are particularly well-suited for applications involving corrosive substances and elevated temperatures, making them an ideal choice for industries that demand high-performance materials.

Alloy 20 Plates Properties
Alloy 20 Plates exhibit a range of remarkable properties that make them stand out in demanding applications:
- Corrosion Resistance: Alloy 20 Plates offer exceptional resistance to corrosion, particularly in sulfuric acid environments. They also resist pitting and crevice corrosion in chloride-containing environments.
- High Temperature Stability: These plates can maintain their structural integrity and mechanical properties at elevated temperatures, making them suitable for high-temperature applications.
- Weldability: Alloy 20 Plates have good weldability, allowing for ease of fabrication and the creation of complex structures without compromising their integrity.
- Durability: With their robust composition, Alloy 20 Plates provide long-lasting performance and reduce the need for frequent replacements, leading to cost savings in the long term.
- Mechanical Strength: These plates have excellent mechanical properties, including high tensile and yield strength, which ensure they can withstand significant stress and pressure.
Advantages of Alloy 20 Plates
Using Alloy 20 Plates in your industrial applications comes with a host of advantages:
- Extended Service Life: The superior corrosion resistance of Al 20 Plates ensures a longer service life even in the most challenging environments, reducing downtime and maintenance costs.
- Versatility: Suitable for a wide range of applications, from chemical processing to pharmaceutical production, Alloy 20 Plates can handle various corrosive substances and high temperatures.
- Cost-Effective: Despite the initial investment, the durability and reduced maintenance needs of Alloy 20 Plates make them a cost-effective solution over time.
- Safety: The excellent mechanical properties and resistance to corrosion ensure that structures made from Alloy 20 Plates maintain their integrity, thereby enhancing safety in industrial environments.
- Ease of Fabrication: Al 20 Plates can be easily welded and fabricated into complex shapes, providing flexibility in design and manufacturing processes.


Schedule and Size Chart
Thickness (inches) | Width (inches) | Length (inches) |
0.125 | 48 | 96 |
0.250 | 48 | 96 |
0.375 | 48 | 96 |
0.500 | 48 | 96 |
0.750 | 48 | 96 |
1.000 | 48 | 96 |
1.250 | 48 | 96 |
1.500 | 48 | 96 |
Mechanical Properties Chart
Property | Value |
Tensile Strength | 75,000 – 85,000 psi |
Yield Strength | 30,000 – 35,000 psi |
Elongation | 40% |
Hardness | 90 – 105 HB |
Modulus of Elasticity | 29 x 10^6 psi |
Impact Toughness | Good at room temperature |
Specifications Chart
Specification | Details |
Material | Alloy 20 |
Standard | ASTM B463, ASTM B464, UNS N08020 |
Form | Plates |
Finish | Hot rolled, Cold rolled |
Thickness Range | 0.125 inches to 1.500 inches |
Width | Typically 48 inches |
Length | Typically 96 inches |
Chemical Composition Chart
Element | Content (%) |
Nickel (Ni) | 32.0 – 38.0 |
Chromium (Cr) | 19.0 – 21.0 |
Molybdenum (Mo) | 2.0 – 3.0 |
Copper (Cu) | 3.0 – 4.0 |
Iron (Fe) | Balance |
Carbon (C) | ≤ 0.05 |
Manganese (Mn) | ≤ 2.0 |
Silicon (Si) | ≤ 1.0 |
Sulfur (S) | ≤ 0.03 |
Phosphorus (P) | ≤ 0.04 |
Physical Properties Chart
Property | Value |
Density | 8.05 g/cm³ |
Melting Point | 1400 – 1450°C |
Thermal Conductivity | 14.3 W/m·K |
Specific Heat Capacity | 0.43 J/g·K |
Coefficient of Thermal Expansion | 13.4 x 10^-6/K |
Application Chart
Application | Details |
Chemical Processing | Excellent resistance to acids and corrosive environments |
Aerospace | Used in aerospace components for its strength and corrosion resistance |
Food Processing | Suitable for food handling equipment due to its resistance to sulfuric acid |
Marine Engineering | Ideal for marine environments where resistance to chloride stress corrosion is crucial |
Pharmaceutical | Used in pharmaceutical manufacturing for its ability to resist aggressive chemicals |
Why Choose ASC LLP for Alloy 20 Plates?
At ASC LLP, we are committed to providing high-quality Alloy 20 that meet the highest industry standards. Our extensive inventory ensures that we can supply plates in various sizes and thicknesses to meet your specific requirements. Here are a few reasons why we are the preferred supplier for Alloy Plates:
- Quality Assurance: Our Alloy Plates undergo rigorous testing and quality control measures to ensure they meet the highest standards of performance and reliability.
- Competitive Pricing: We offer competitive pricing without compromising on quality, ensuring you get the best value for your investment.
- Expert Support: Our team of experts is always available to provide technical support and assistance, helping you select the right materials for your applications.
- Timely Delivery: With our efficient logistics and distribution network, we ensure timely delivery of your orders, no matter where you are located.
- Customer Satisfaction: We are dedicated to providing exceptional customer service and building long-term relationships with our clients.
Alloy Plates from ASC LLP are an excellent choice for industries requiring superior corrosion resistance and mechanical strength. Whether you’re dealing with acidic environments or high-pressure applications, our Al 20 Plates provide the durability and reliability you need to keep your operations running smoothly. Trust ASC LLP for all your Alloy Plates requirements and experience the difference in quality and service.
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.