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ASTM A387 Grade 21L steel plates for pressure vessels

ASTM A387 Grade 21L steel plates for pressure vessels

ASTM A387 Grade 21L is in the standard ASTM A-387/A-387M . A387 Grade 21L is a kind of Cr-Mo-alloy steel plates material used to fabric high temperature pressure vessels. A387 have ten grades or levels. They are : grade 2 , grade 12 , grade 11 , grade 22 , grade 22L , grade 21 , grade 21L , grade 5 , grade 9 , grade 91 . Because of the good property , A387GR11CL1 , A387GR11CL2 , A387GR22CL1 , A387GR22CL2 , A387GR12CL1 , A387GR12CL2 are widely used in the high temperature vessels industry.

Key words:A387 Grade 21L,ASTM A387 Grade 21L,A387 Grade 21Lsteel plates,A387 Grade 21L Cr-Mo-alloy steel plates, ASTM A387 Grade 21L steel plates for fabric high temperature pressure vessels.

ASTM A387 Grade 21L steel chemical composition(%) :

Element

C

Mn

P

S

Si

Cr

Mo

Analyse

 

1

2

1

2

1

2

1

2

 

1

2

1

2

1

2

Min

 

-

-

0.30

0.25

-

-

-

-

 

-

-

2.75

2.63

0.90

0.85

Max

 

0.15-0

0.12

0.60

0.66

0.035

0.035

0.035

0.035

 

0.50

0.50

3.25

3.37

1.10

1.15

Note : 1 means Heat analyse ; 2 means Product analyse.

ASTM A387 Grade 21L steel Mechanical Properties :

Grade

ASTM A 387 Grade 21L

Tensile Strength (MPa)

515-690MPa

Yield Strength (MPa)

310MPa

Elongation (%)

18 %

ASTM A387 Grade 21L steel chief application :
ASTM A387 Grade 21L 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.

Shanghai Royal Industry is a professional ASME A387 and ASTM A387 steel stockist and supplier. We can supply different product type and steel grades like grade 2, grade 12, grade 11, grade 22, grade 22L, grade 21, grade 21L, grade 5 , grade 9 , grade 91 steel.If you have any need of ASTM A387 or ASTM A387 steel please do not hesitate to contact us .

Related link :ASTM A387 Grade 2 ,ASTM A387 Grade 12 ,ASTM A387 Grade 22 ,ASTM A387 Grade 11 , ASTM A387 Grade 22L , ASTM A387 Grade 21 , ASTM A387 Grade 5 , ASTM A387 Grade 9 , ASTM A387 Grade 91,A387 Grade 11 CL1,A387 Grade 22 CL1,A387 Grade 11 CL2,A387 Grade 22 CL2,ASTM A387

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