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A299 Gr.B Boiler steel plate

A299 Gr.B Boiler steel plate

ASTM A299 Gr.B is a kind of carbon steel material, it's product type is steel plates. Based on A299 higher C, Mn, and Si composition, ASTM A299 Gr.B widely used to fabric pressure vessel.There are two steel grades in the standard ASTM A299 , and they are A299 Gr.A, A299 Gr.B .

Standard: ASTM
Dimension range : 5-300mm * 1500-4200mm * 4000-18000mm

ASTM A299 Gr.B structural steel plate Chemical Composition

Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

A299Gr.B

0.28-0.30

0.13-0.45

0.84 -1.62

0.035

0.035

 

 

ASTM A299 Gr.B Boiler steel plate Mechanical Properties :

Mechanical Properties

Grade

Thickness

Yield
Strength

Tensile Strength

Elongation

Charpy V Notch Impact Test

Degree

Min Value

A299Gr.B

mm

Min Mpa

Mpa

Min %

-

J

5≤t≤50

310-325

550-690

19%

-

50≤t≤100

310-325

550-690

19%

 

 

Note: Impact energy for impact test is on longitudinal

Delivery Status : Normalizing + tempering or tempering state

ASTM A299 Gr.B steel plate/sheet application :
A299 Gr.B pressure vessel steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.

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