What is pressure vessel steel A516GR.70?

What is pressure vessel steel A516GR.70?

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What is pressure vessel steel A516GR.70?

 

A516GR.70 (also called SA516GR.70, A516 Grade 485, SA516 Grade 485) is a common kind of pressure vessel plates for welded pressure vessels where improved notch toughness is important.

 

Chemical Components of A516GR.70 plates:


Thickness(mm)

C

Mn

P

S

Si

Heat analysis

≤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

Product analysis

≤12.5

0.27

0.79-1.3

0.025

0.025

0.13-0.45

>12.5-50

0.28

0.79-1.3

>50-100

0.30

>100-200

0.31

>200

0.31

 

Mechanical Properties of A516GR.70 plates:

Tensile Strength

Ksi (MPa)

Yield Strength

Ksi (MPa)

Elongation

Min, %

50-200mm

≤50mm

70-90

(485-620)

38

(260)

17

21

 

Features of A516Gr.70 plates:

good impact resistance, low temperature deformation, good welding performance, good fatigue resistance, good anti-layered cracking performance, micro-alloying, high purity, low carbon equivalent, strong resistance to sulfur and hydrogen, good dimensional tolerance and good surface quality

 

Application of A516GR.70 plates: 

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.


Other technical requirements of A516GR.70 plates:

UT, AR, TMCP, CR, N, Q+T, Z15, Z25, Z35, Impact test (-20℃, -40℃), HIC, SPWHT, NACE0175 




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