SA516 Grade 70 is one of the most popular steel grades. ASME SA516 Grade 70 steel material is carbon steel mainly used in welded pressure vessels steel. The steel has good weldability and excellent notch toughness. It works well in Moderate- and Lower-Temperature environment.
For SA516 grade 70 pressure vessel plates, the ASME standard composition and mechanical properties is as follows (dependent on grade):
Elements:
Carbon 0.27 - 0.31%
Manganese 0.79 - 1.3%
Phosphorous 0.035% max
Sulphur 0.035% max
Silicon 0.13 - 0.45%
Mechanical Properties:
Tensile strength (MPa): 415-550
Yield strength min. (MPa): 220
Elongation in 200mm (min)(%): 21
Elongation in 50mm (min) (%): 25
This SA516 Grade 70 plate is produced in both the As Rolled and Normalized condition. For plates thinner than 40mm normally supply as rolled. Plates above 40mm thick are normalised.
SA516 Grade 70 pressure vessel plates are produce to make a superior quality carbon steel plate which have consistent controlled properties and are designed to withstand the internal pressure of pressure vessels, boilers and valves . The material is used extensively by industrial boiler and pressure vessel fabricators who provide manufacturing support to the oil, gas and petrochemical industry.
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