Chemical Composition of ASTM A283 Grade C & D
Table 1:
|
Elements |
Heat Analysis, % |
||
|---|---|---|---|
|
|
Grade C |
Grade D |
|
|
Carbon, max |
0.24 |
0.27 |
|
|
Manganese, max |
0.90 |
0.90 |
|
|
Phosphorus, max |
0.030 |
0.030 |
|
|
Sulfur, max |
0.030 |
0.030 |
|
|
Silicon 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 |
|
|
Copper, min % when copper is specified |
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
The steel shall be killed and made by one or more of the following processes:
Open-hearth
Basic-oxygen
Electric furnace
General Requirements for Delivery
ASTM A283 plates shall comply with A6/A6M, coils are exlcuded from this specification until they are cutted to finished plates.
Keywords
Carbon Steel; Plates, Coils; Structal Quality.
Supplementary Requirements under A283
These are not applied unless agreed by the buyer and seller, which listed in Specfication of A6/A6M.
Mechanical Properties
Table 2:
|
|
Grade C |
Grade D |
|---|---|---|
|
Tensile strength, ksi [MPa] |
55-75 |
60-80 [415-550] |
|
Yield point, min, ksi [Mpa] |
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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