A516 Grade 70/ A516Gr.70 is a top-quality pressure vessel steel plate that is widely used for moderate and lower temperature service in various applications. It is produced in compliance with ASTM A516/A516M standard and ASME SA516/SA516M specifications. A516Gr.70 is equivalent to P355GH, Q345R, 18MnMoNbR, and A537CL1 steel grades.

 

Chemical Composition

 

The chemical composition of A516Gr.70 steel plate is as follows:

 

- Carbon (C): 0.27%

- Manganese (Mn): 0.85-1.20%

- Phosphorus (P): 0.035%

- Sulfur (S): 0.035%

- Silicon (Si): 0.15-0.40%

- Copper (Cu): 0.3% (max)

- Nickel (Ni): 0.3% (max)

- Chromium (Cr): 0.3% (max)

- Molybdenum (Mo): 0.08% (max)

 

Mechanical Properties

 

A516Gr.70 steel plate possesses excellent mechanical properties such as high strength, ductility, toughness, and weldability. The typical mechanical properties of A516Gr.70 are:

 

- Tensile strength (ksi): 70-90

- Yield strength (ksi): 38

- Elongation in 8 in. (%) or 200 mm (%): 17

- Elongation in 2 in. (%) or 50 mm (%): 21

- Reduction of area (%): 27

- Hardness (HB): 200 (max)

 

Heat Treatment

 

The normalizing heat treatment is recommended for A516Gr.70 steel plate to improve its mechanical properties. It involves heating the steel plate to a temperature of about 1650°F (900°C) and then cooling it in air. The heat treatment process provides the steel plate with uniform mechanical properties and greater resistance to brittle fracture and impact.

 

Size Range

 

A516Gr.70 steel plate is available in a wide range of thicknesses and widths. The thickness range is from 3/16" to 4" and the width range is from 48" to 120".

 

Main Application

 

A516Gr.70 steel plate is used extensively throughout the oil, gas, and petrochemical industry in the production of storage tanks, boilers, and pressure vessels. The steel plate is also used in the construction of railcars, pipelines, and other equipment that requires a high level of strength and toughness.

 

TJC Steel Supply

 

TJC Steel is a trusted supplier of A516Gr.70 steel plate, offering top-quality products at competitive prices. We stock a large inventory of A516Gr.70 steel plate in different sizes and thicknesses to meet the varied requirements of our customers. Our team of experts ensures that all our products meet the highest standards of quality and durability, and we provide timely delivery and excellent after-sales support.

 

Conclusion

 

A516Gr.70 steel plate is a top-quality pressure vessel steel plate that offers excellent mechanical properties and is widely used in various applications. At TJC Steel, we are committed to providing our customers with the best possible products and services, and we take pride in our ability to meet the diverse needs of our customers. Contact us today to learn more about our products and services.