A516 Grade 55 Carbon Steel Plate
This specification, ASTM A516 Grade 55, covers carbon steel plates used primarily for welded pressure vessels where improved notch toughness is important. ASTM A516 allows for four different strength grades. The most common is Grade 70.
A516 grade 55 steel boiler plate chemical composition
|
Composition |
A516 Grade 55(380) |
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|
C ≤ ① |
≤ 12.5mm |
0.18 |
|
|
|
＞ 12.5mm ~ 50mm |
0.20 |
|
|
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＞ 50mm ~ 100mm |
0.22 |
|
|
|
＞ 100mm ~ 200mm |
0.24 |
|
|
|
＞ 200mm |
0.26 |
|
|
Mn |
≤12.5mm② |
Heat analyses |
0.60~0.90 |
|
|
|
Product analyses |
0.55~0.98 |
|
|
12.5mm~50mm |
Heat analyses |
0.60~1.20 |
|
|
|
Product analyses |
0.55~1.30 |
|
P ≤ ① |
0.035 |
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S ≤ ① |
0.035 |
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|
Si |
Heat analyses |
0.15~0.40 |
|
|
|
Product analyses |
0.13~0.45 |
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a516 grade 55 Boiler Plate Steel mechanical property
| Property | Value | Comment |
|---|---|---|
|
Elongation |
23 % |
min. | for thickness 5-150 mm | A8 | Transverse |
|
27 % |
min. | for thickness 5-150 mm | A2 | Transverse |
|
|
Tensile strength |
380 - 515 MPa |
for thickness 5-150 mm | Transverse |
|
Yield strength |
205 MPa |
min. | for thickness 5-150 mm | Transverse |
a516 grade 55 pressure vessel plate dimensions chart
| FOUR-HIGH MILL PLATES | CUT-TO-LENGTH PLATES | ||
|---|---|---|---|
| WIDTH1 from _ to in mm |
THICKNESS1 from _ to in mm |
WIDTH1 from _ to in mm |
THICKNESS1 from _ to in mm |
| - | - | ||
| 3,600 | 4.0 – 85.0 | - | - |
| 3,600 | 4.0 – 40.02 | - | - |
| - | - | ||
| - | - | ||
| 3,600 | 4.0 – 85.0 | ||
| 3,600 | 4.0 – 85.0 | ||
| 3,600 | 4.0 – 85.0 | ||
| 3,600 | 4.0 – 85.0 | - | - |
| - | - | ||
| 3,300 | 4.0 – 65.0 | - | - |
| - | - | ||
| 3,600 | 4.0 – 85.0 | - | - |
| 3,300 | 4.0 – 85.0 | - | - |
| 3,300 | 4.0 – 50.0 | ||
| 3,300 | 4.0 – 20.02 | - | - |
| - | - | ||
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