In fact, the mechanical composition and chemical characteristic of the steels are selfsame and it is the producer of the standard that is the key difference. ASTM, the American Society for Testing and Materials, produces standards that define limits and parameters on a product's properties and the methods of testing those properties. ASME, the American Society of Mechanical Engineers, specifies materials to be used in the manufacture and construction of particular items.
ASTM A588 Gr C
Chemical composition (% , Max)
C : 0.17
Si : 0.25~0.50
Mn : 0.50~1.20
P : 0.04
S : 0.05
Cr : 0.40~0.70
Mo : 0.1
Ni : 0.4
Cu : 0.30~0.50
Nb : 0.005~0.05
Mechanical properties (MPa, Min)
Yield point or Yield strength(YS)
t≤100 : 345
100＜t≤125 : 315
125＜t≤200 : 290
Tensile strength(TS)
t≤100 : 485
100＜t≤125 : 460
125＜t≤200 : 435
ASME SA588 Grade C Chemical Composition
|
Grade |
C% |
Si% |
Mn% |
P% |
S% |
Cu% |
V% |
Cr% |
Ni% |
|
SA588Gr.C |
0.15 |
0.15-0.40 |
0.80-1.35 |
0.040 |
0.050 |
0.20-0.50 |
0.01-0.10 |
0.3-0.50 |
0.25-0.50 |
ASME SA588 Grade C Mechanical Properties
|
Grade |
Yield Strength |
Tensile Strength |
Elongation % |
|
SA588Gr.C |
≥290-345 MPa |
≥435-485 MPa |
21 |
