ASTM A285级C碳钢板
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.
Chemical compostion (%, by heat analysis)
| 年级 | c max。 | SI. | mn max。 | p max。 | 最大。 |
| A285GR.C. | 0.28 | 0.08-0.45. | 0.98 | 0.035 | 0.035 |
ASTM的机械性能A285级C.pl
| 厚度 | 最小产量强度 | 抗拉强度 | 伸长 |
| 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.