A516 Grade 70 boiler quality plates

ASTM A516 Grade 70(A516 Grade 485) material is a common kind of boiler quality plates for welded pressure vessels where improved notch toughness is important.
This steel is intended for use in conditions wherein notch toughness is important. And, it helps to enhance the notch toughness. Notch toughness is the capability of a material to absorb energy when a defect is present. Moreover, the carbon steel A516 GR 70 plates are of premium quality and have a huge demand in the market and are also quite a favored steel grade.

Chemical Composition of A516 Grade 70 plates

Thickness(mm)	C	Mn	P	S	Si
≤12.5	0.27	0.85-1.2	0.025	0.025	0.15-0.40
>12.5-50	0.28	0.85-1.2
>50-100	0.30
>100-200	0.31
>200	0.31

Mechanical Properties of A516 Grade 70 steel

Tensile Strength Ksi (MPa)	Yield Strength Ksi (MPa)	Elongation Min, %
		50-200mm	≤50mm
70-90 (485-620)	38 (260)	17	21

Application industry
A516 Grade 70 boiler quality plates are mainly used in the industries of petroleum, chemical, turbine, boiler and other industries, used in the manufacture of reactors, heat exchangers, separators, spherical tanks, gas tanks, liquefied gas tanks, nuclear reactor pressure shells, boiler drums, liquefied petroleum gas cylinders, high-pressure hydropower stations Water pipes, water turbine volutes and other equipment and components.