Alloy steel ASTM A387 boiler vessel plate supply
On April 25, the latest price of boiler steel plates in the Shanghai market went up. The price of Katalor Industry ASTM A387 6mm thick ASTM A387 boiler vessel plate: 6790 yuan/ton, an increase of 50 from yesterday. The price of ASTM A387 boiler vessel plate 8mm thick: 6,490 yuan/ton, up 50% from yesterday. The price of ASTM A387 boiler vessel plate 10mm thick: 6390 yuan/ton, an increase of 50 from yesterday.
ASTM A387 alloy steel composition
Chrome moly alloy steel plate under ASTM A387 in several grades that has different alloy contents as below, common use grades are Gr 11, 22, 5, 9 and 91.
Grade |
Nominal Chromium Content, % |
Nominal Molybdenum Content, % |
|
2 |
0.50 |
0.50 |
|
12 |
1.00 |
0.50 |
|
11 |
1.25 |
0.50 |
|
22, 22L |
2.25 |
1.00 |
|
21, 21L |
3.00 |
1.00 |
|
5 |
5.00 |
0.50 |
|
9 |
9.00 |
1.00 |
|
91 |
9.00 |
1.00 |
Except 21L, 22L and 91, each grade is available in two classes of tensile strength levels as defined in the tensile requirements tables. Grades 21L and 22L only has Class 1, and Grade 91 only has Class2.
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