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ASTM A662 Grade A steel plate

A662 Grade A steel plate/sheet

A662 Grade A is a steel plate material used in the manufacture of boiler and pressure vessel, Obviously, A662 is divided into three grades or levels :A662 Gr. A, A662 Gr. B, A662 Gr. C .

Standard: ASTM A-662/A-662M

Dimension range :3mm -500mm x 1000mm-4000mm x 1000mm-18000mm

A662 Grade A steel plate/sheet Mechanical Properties :


Mechanical Properties

Grade

Thickness

Yield
Strength

Tensile Strength

Elongation

Charpy V Notch Impact Test

Degree

Min Value

A662Gr.A

mm

Min Mpa

Mpa

Min %

-

J

5≤t≤50

275

400-540

23%

-

50≤t≤150

275

400-540

20%

 

-

Note: Impact energy for impact test is on longitudinal

A662 Grade A Boiler steel plate Chemical Composition :


Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

N

Al

A662Gr.A

0.14

0.13~0.45

0.84-1.46

0,035

0,035

-

-

Delivery Status : Quenching + tempering

ASTM A662 Grade A pressure vessel steel application :
A662 Grade A steel plate is mainly used in petroleum, chemical industry, power station, boiler and other industries, for the production reactor, heat exchanger, separator, spherical tank, oil tank, liquefied gas tank, nuclear reactor pressure shell, boiler drum, liquefaction Oil cylinders, high-pressure water pipe hydropower station, turbine volute and other equipment and components.

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