CHROME MOLY STEEL PLATE TO ASTM A387

CHROME MOLY STEEL PLATE TO ASTM A387

ASTM A 387 is one of our most popular products. It is a low alloy pressure vessel quality steel for high temperatures. We have a wide range of plate sizes available and thicknesses range from 6 - 100mm. The ASTM A 387 standards covers the supply of weldable chrome molybdenum alloy steel plates...

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Product Details

ASTM A 387 is one of our most popular products. It is a low alloy pressure vessel quality steel for high temperatures. We have a wide range of plate sizes available and thicknesses range from 6 - 100mm. 

The ASTM A 387 standards covers the supply of weldable chrome molybdenum alloy steel plates for pressure vessels used in elevated temperature service. 

The added molybdenum and chromium provides excellent corrosion resistance and high temperature resistance respectively.


As a quality chrome molybdenum steel, A387 is used in a variety of industries and is highly effective, particularly in the oil, gas and chemical industry, where liquids and gases are often stored at high temperature (see pressure vessels). The higher levels of chromium also provide excellent corrosion and oxidation resistance.


Chemical Requirements


GR. 2

GR. 12

GR. 11

GR. 22

GR. 22L

GR. 21

GR. 21L

GR. 5

GR. 9

GR. 91*

C

0.05-0.21

0.05-0.17

0.05-0.17

0.05-0.15

0.10

0.05-0.15

0.10

0.15

0.15

0.08-0.12

Mn

0.55-0.80

0.40-0.65

0.40-0.65

0.30-0.60

0.30-0.60

0.30-0.60

0.30-0.60

0.30-0.60

0.30-0.60

0.30-0.60

P

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.020

S

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.025

0.010

Si

0.15-0.40

0.15-0.40

0.50-0.80

0.50

0.50

0.50

0.50

0.50

1.00

0.20-0.50

Cr

0.50-0.80

0.80-1.15

1.00-1.50

2.00-2.50

2.00-2.50

2.75-3.25

2.75-3.25

4.00-6.00

8.00-10.00

8.00-9.50

Mo

0.45-0.60

0.45-0.60

0.45-0.65

0.90-1.10

0.90-1.10

0.90-1.10

0.90-1.10

0.45-0.65

0.90-1.10

0.85-1.05

V

-

-

-

-

-

-

-

-

0.04

0.18-0.25


Tensile Requirements

Class 1 Plates

GRADE

TENSILE (MPA)

YIELD (MPA)

ELONG. (50MM)

REDUC'N OF AREA*

2, 12

380 - 550

230 min

22% min

-

11

415 - 585

240 min

22% min

-

22, 21, 5, 9

415 - 585

205 min

18% min

40% min

21L, 22L

415 - 585

205 min

18% min

40% min


Class 2 Plates

GRADE

TENSILE (MPA)

YIELD (MPA)

ELONG. (50 MM)

REDUC'N OF AREA*

2

485 - 620

310 min

22% min

-

11

515 - 690

310 min

22% min

-

12

450 - 585

275 min

22% min

-

22, 21, 5, 9

515 - 690

310 min

18% min

40% min

91

585 - 760

415 min

18% min

-



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