Introduction

SA516 Grade 70/ SA516Gr.70 is a high temperature pressure vessel steel plate, which is widely used in various industries such as petroleum, chemical, power station, boiler, and so on. This steel plate has excellent chemical composition, mechanical properties, and thermal treatment status, making it suitable for high-pressure and high-temperature applications.

 

Chemical Composition

The chemical composition of SA516 Grade 70/ SA516Gr.70 is C, Mn, Si, P, S, and V. The maximum allowable content of carbon (C) is 0.30%, while the maximum allowable content of sulfur (S) is 0.035%. The maximum allowable content of phosphorus (P) is 0.035%, and the maximum allowable content of silicon (Si) is 0.15% to 0.40%.

 

Mechanical Properties

The mechanical properties of SA516 Grade 70/ SA516Gr.70 are superior to other standard steels. The tensile strength ranges from 485-620 Mpa, and the yield strength ranges from 260-330 Mpa. The elongation at break is greater than 17% in 200mm, and the impact toughness at -46℃ is greater than 35J. These excellent mechanical properties ensure the safety and reliability of pressure vessel applications.

 

Heat Treatment Status

SA516 Grade 70/ SA516Gr.70 can be heat treated in a variety of ways, depending on the application. Annealing can improve the toughness and plasticity of the steel plate, and normalize can improve its hardness and strength. Also, the steel plate can be quenched and tempered to obtain higher strength and toughness.

 

Advantages and Disadvantages of Steel Plate

SA516 Grade 70/ SA516Gr.70 has the following advantages: High strength, good toughness, excellent weldability, and high impact resistance. It also has a low carbon content, which makes this steel plate corrosion resistant and oxidation resistant.

 

However, the main disadvantage is that the steel plate is relatively expensive than other types of steel, which makes it less competitive in some applications.

 

Application

SA516 Grade 70/ SA516Gr.70 is widely used in high-pressure and high-temperature applications, including petrochemical, chemical, power generation, and other industries. The steel plate can be used in pressure vessels, tanks, boilers, and heat exchangers.

 

TJC Steel Supply Case

TJC Steel is a professional supplier of SA516 Grade 70/ SA516Gr.70 high temperature pressure vessel steel plate. They offer various specifications and sizes to meet customers' demands. TJC Steel also provides related services such as cutting, welding, and machining.

 

Conclusion

SA516 Grade 70/ SA516Gr.70 is an ideal material for high-pressure and high-temperature applications. Its excellent chemical composition, mechanical properties, and heat treatment status, making it a popular choice for pressure vessels, tanks, boilers, and heat exchangers. As a professional supplier, TJC Steel provides customers with high-quality steel plates and related services.