ASTM A709-50 Plates: High-Performance Corten Steel Plates for Diverse Applications
Welcome to ASC LLP, your premier source for high-quality ASTM A709-50 plates. We are committed to providing top-notch materials that meet stringent industry standards, ensuring superior performance for a wide range of applications. In this comprehensive guide, we will explore the features, benefits, and applications of ASTM A709-50 plates, helping you make informed decisions for your project needs.
What Are ASTM A709-50 Plates?
ASTM A709-50 Plates are high-strength, low-alloy steel plates primarily used in the construction of bridges and other structures requiring enhanced strength and durability. These plates, often referred to as Corten Steel Plates due to their exceptional weathering properties, are engineered to withstand harsh environments, making them an ideal choice for a wide range of structural applications.

Properties of ASTM A709 Gr50 Plates
ASTM A709 Gr50 plates are renowned for their exceptional properties that contribute to their performance in demanding environments. Key properties include:
- High Strength: ASTM A709 Gr50 plates offer excellent tensile strength, typically ranging from 50 to 65 ksi (345 to 450 MPa). This high strength ensures structural integrity and load-bearing capacity.
- Weather Resistance: As a type of Corten steel, ASTM A709 Gr50 plates exhibit superior resistance to atmospheric corrosion. The formation of a protective rust layer enhances the plate’s longevity and reduces maintenance requirements.
- Good Weldability: These plates can be easily welded using standard welding techniques, making them suitable for various fabrication processes.
- Formability: ASTM A709 Gr50 plates are highly formable, allowing for intricate designs and shapes to be achieved without compromising their structural integrity.
- Impact Toughness: The plates maintain good impact toughness, ensuring they perform well even under dynamic loads and stress.
Advantages of ASTM A709 Gr50 Plates
The use of ASTM A709 plates offers several advantages, making them a preferred choice for many construction and engineering applications:
- Durability: The high strength and weathering resistance of ASTM A709 plates contribute to their long-term durability, reducing the need for frequent replacements and repairs.
- Cost-Effectiveness: While the initial cost of ASTM A709 Gr50 plates may be higher than standard steel, their longevity and low maintenance requirements often result in cost savings over time.
- Aesthetic Appeal: The distinctive rust-like appearance of Corten steel provides an aesthetically pleasing finish, making it a popular choice for architectural and artistic applications.
- Reduced Maintenance: The protective rust layer that forms on A709 Gr50 plates reduces the need for regular painting and coating, lowering maintenance costs and effort.
- Versatility: These plates are suitable for a wide range of applications, from bridges and highways to sculptures and building facades, due to their strength and corrosion resistance


Schedule and Size Chart
Plate Thickness (mm) | Plate Width (mm) | Plate Length (mm) |
6 | 1500 – 3200 | 6000 – 12000 |
8 | 1500 – 3200 | 6000 – 12000 |
10 | 1500 – 3200 | 6000 – 12000 |
12 | 1500 – 3200 | 6000 – 12000 |
16 | 1500 – 3200 | 6000 – 12000 |
20 | 1500 – 3200 | 6000 – 12000 |
25 | 1500 – 3200 | 6000 – 12000 |
30 | 1500 – 3200 | 6000 – 12000 |
40 | 1500 – 3200 | 6000 – 12000 |
50 | 1500 – 3200 | 6000 – 12000 |
Mechanical Properties Chart
Property | Value |
Tensile Strength | 485 MPa (70 ksi) min |
Yield Strength | 345 MPa (50 ksi) min |
Elongation (in 8 in. or 200 mm) | 18% min |
Elongation (in 2 in. or 50 mm) | 21% min |
Impact Resistance (Charpy V-Notch) | 15 ft-lbs at -40°F (20 J at -40°C) min |
Specifications Chart
Specification | Details |
Standard | ASTM A709 |
Grade | Gr50 |
Type | Structural Steel |
Heat Treatment | As-Rolled or Normalized |
Thickness Range | 6 mm – 50 mm |
Width Range | 1500 mm – 3200 mm |
Length Range | 6000 mm – 12000 mm |
Chemical Composition Chart
Element | Composition (%) |
Carbon (C) | 0.23 max |
Manganese (Mn) | 0.50 – 1.50 |
Phosphorus (P) | 0.04 max |
Sulfur (S) | 0.05 max |
Silicon (Si) | 0.15 – 0.40 |
Copper (Cu) | 0.20 – 0.40 |
Chromium (Cr) | 0.40 – 0.65 |
Nickel (Ni) | 0.40 max |
Vanadium (V) | 0.01 – 0.10 |
Physical Properties Chart
Property | Value |
Density | 7.85 g/cm³ |
Modulus of Elasticity | 200 GPa |
Poisson’s Ratio | 0.30 |
Thermal Conductivity | 45 W/m·K |
Specific Heat | 0.49 J/g·°C |
Melting Point | 1425 – 1540 °C |
Application Chart
Application | Description |
Bridges | Used in the construction of bridge components such as girders, trusses, and decking due to high strength and corrosion resistance. |
Buildings | Suitable for high-rise buildings, industrial facilities, and other structures requiring durable and strong materials. |
Transportation Infrastructure | Employed in railway cars, highway barriers, and other transportation-related structures. |
Marine Structures | Ideal for docks, piers, and offshore platforms due to resistance to atmospheric corrosion. |
Construction Equipment | Utilized in the manufacture of heavy-duty construction equipment and machinery. |
Why Choose ASC LLP?
- Quality Assurance: We adhere to stringent quality control measures to ensure that our A709 Gr50 Plates meet industry standards and client specifications.
- Competitive Pricing: Our strategic partnerships with manufacturers allow us to offer competitive pricing without compromising on quality.
- Timely Delivery: With a robust logistics network, we ensure timely delivery of orders, regardless of size or location.
- Customer Support: Our knowledgeable team provides comprehensive support, from material selection to after-sales service, ensuring a seamless experience for our clients.
ASTM A709 Gr50 Plates Suppliers
At ASC LLP, we are proud to be a leading supplier of ASTM A709 Gr50 plates. We source our plates from reputable manufacturers to ensure the highest quality and compliance with industry standards. Our team of experts is dedicated to providing exceptional service and support, helping you select the right plates for your specific needs.
ASTM A709 plates are an excellent choice for applications requiring high strength, durability, and resistance to environmental conditions. Whether you are involved in bridge construction, highway infrastructure, architectural projects, or industrial applications, these plates offer superior performance and reliability.
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 ASTM A709 Gr50 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.