ASTM A387 Gr 21 CL 2 is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 3.00 % and the Mo content 1.00 %.

Each grade except grade 21L, Grade 22L, Grade 91 and Grade 911 is available in two classes of tensile strength levels. Grade 91 and Grade 911 are available only as Class 2.

 

Supplementary Technology:   HIC Test | NACE MR0175 | Z15 | Z25 | Z35 | S1 | S2 | S3 | S4
S5 | S6 | S7 | S8 | S9| S11 | S12 | S14 | S17

 

STEEL DIMENSION:

Thickness: 6MM to 300MM,

Width: 1500mm to 4050mm,

Length: 3000mm to 15000mm
 

Gangsteel is specialized in supplying ASTM steel plate in A387 Grade21 Class2. For more information of grade A387 Gr.21 Cl.2 steel plates, please check them in following:

 

A387 Gr.21 CL.2Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Cr

Mo

A387 Gr.21 Cl.2

0.04-0.15

0.50

0.25-0.66

0.035

0.035

2.63-3.37

0.85-1.15

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

Grade

A387 Gr.12 CL.2Mechanical Property

Thickness

Yield

Tensile

Elongation

A387 Gr.21 Cl.2

mm

Min Mpa

Mpa

Min  %

t≦50

310

515-690

18

50<t≦200

-

-

-

Shipbuilding steel plate| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate

 

 

 

Equivalent steel grade of A387 Gr.21 Cl.2

Europe

Belgium

Germany

France

Italy

Sweden

India

Japan

U.K

 

 

 

 

 

 

 

 

 

 

If you need more stock steel plates in pressure vessel steel plate, please click warehouse sizes.

 

Related Grade: A387 Grade21 Class1 | SA387 Grade21 Class1 |A387 GR.21 Cl.1 | SA387 GR.21 Cl.1

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