Chemical Composition of ASTM A283 Grade C & D
Table 1:
|
|
|||
|---|---|---|---|
|
0.24 |
0.27 |
||
|
0.90 |
0.90 |
||
|
0.030 |
0.030 |
||
|
0.030 |
0.030 |
||
|
Plates 1-1/2in. [40mm] and under, max Plates over 1-1/2in. [40mm] |
0.40 0.15-0.40 |
0.40 0.15-0.40 |
|
|
0.20 |
0.20 |
||
B: For plates wider than 24 in. [600 mm], the elgonation requirement is reduced 2%.
Manufacturing Process of ASTM A283 Grade C & D Plate
Open-hearth
Basic-oxygen
ASTM A283 plates shall comply with A6/A6M, coils are exlcuded from this specification until they are cutted to finished plates.
Supplementary Requirements under A283
These are not applied unless agreed by the buyer and seller, which listed in Specfication of A6/A6M.
Table 2:
|
|
||
|---|---|---|
|
55-75 |
60-80 [415-550] |
|
|
30 |
33 [230] |
|
|
Elongation in 8 in. [200 mm], min, %B |
22 |
20 |
|
Elogination in 2 in. [50mm], min, %B |
25 |
23 |
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