ASTM A285 Grade C plates are carbon steel with low-and intermediate-tensile strength.The material has good forming and welding characteristics under conventional methods. A285 Grade C carbon steel plate is 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 steel. ASTM A285 Grade C plates 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.
|Grade||C max.||Si||Mn max.||P max.||S max.|
Mechanical properties for ASTM A285 Grade C plates
|Thickness||Min Yield strength||Tensile strength||Elongation|
|6-50(mm)||205 Mpa||380-515 Mpa||27 %|
|51-200(mm)||205 Mpa||380-515 Mpa||23 %|
A285 Grade C Plates Testing and retesting methods, procedures, dimension tolerance, mass, quality and repair defects, marking, loading and ordering information shall comply with A20/A20M.
Pre: ASTM A537 Class 3 Plates Thickness