ASTM A285 standard is for carbon steel, low and intermediate tensile strength steel plates intended for fusion-welded pressure vessels.
The steel plate under ASTM A285 ranges in three grades, A, B and C, most common use is ASTM A285 Grade C plates. Which shall be made by killed, semi-killed, capped or rimmed steel practices at manufacturer's option.
For killed carbon steels only refer to below ASTM specifications.
A 299/A 299M: Carbon steel manganese silicon pressure vessel plates.
A 515/A 515M: Carbon steel for intermediate and higher temperature services of pressure vessel plates.
A516/A516M: Carbon steel for moderate and lower temperature pressure vessel plates.
Maximum thickness of plates is limited to 50 mm [2 inch] for all grades.
Referenced Documents:
ASTM Sandards:
A20/A20M: General requirements for steel plates for pressure vessels.
General Requirements and Ordering Information:
Testing and retesting methods, procedures, dimension tolerance, mass, quality and repair defects, marking, loading and ordering information shall comply with A20/A20M.
In additional to basic requirements, certain supplementary requirements are available.
Coils are excluded from A285 until they have been cutted to plate.
|
|
Grade A |
Grade B |
Grade C |
|||
|---|---|---|---|---|---|---|
|
|
ksi |
[MPa] |
ksi |
[MPa] |
ksi |
[MPa] |
|
Tensile strength |
45-65 |
[310-450] |
50-70 |
345-485 |
55-75 |
380-515 |
|
Yield strength, minA |
24 |
[165] |
27 |
[185] |
30 |
[205] |
|
Elongation in 8 in. or [200 mm], min, %B |
27 |
25 |
23 |
|||
|
Elongation in 2 in. or [50 mm], min, %B |
30 |
28 |
27 |
|||
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