A387 Gr12 Cl2 Steel Plate for Industrial Boilers
A387 Grade 12 Class2 vessel plate is suitable for high temperature services due to its chemical composition. It is a chromium-molybdenum-carbon alloy steel that is widely used in weldable pressure vessels.
The good properties of A387 Gr12 Cl2 boiler plate at high temperatures make it ideal for industrial boilers. The chromium in the chemical composition helps in enhancing the corrosion and oxidation resistance. Due to all these properties, the material is ideal for sour service applications in a wide range of industries.
A387 Gr12 Cl2 pressure vessel steel chemical composition
|
Element |
Analysis |
Chemical Composition (%) |
|
Grade 12 |
||
|
Carbon: |
Heat Analysis: |
0.05 - 0.17 |
|
Manganese: |
Heat Analysis: |
0.40 - 0.65 |
|
Phosphorus: |
Heat Analysis: |
0.035 |
|
Sulphur (max): |
Heat Analysis: |
0.035 |
|
Silicon: |
Heat Analysis: |
0.15 - 0.40 |
|
Chromium: |
Heat Analysis: |
0.80 - 1.15 |
|
Molybdenum: |
Heat Analysis: |
0.45 - 0.60 |
A387 Gr12 Cl2 boiler steel plate Tensile Requirements
|
Designation |
Requirement |
Grade 12 |
|
A387 Grade 12 |
Tensile strength, ksi [MPA] |
65 to 85 [450 to 585] |
|
Yield strength, min, ksi [MPa]/(0.2% offset) |
40 [275] |
|
|
Elongation in 8 in. [200mm], min % |
19 |
|
|
Elongation in 2 in. [50mm], min, % |
22 |
|
|
Reduction of area, min % |
- |
A387 Gr12 Cl2 steel boiler plate weight chart
| Nominal Size Thickness (inches) |
Weight (kg/m2) |
|---|---|
| 1/4 inches | 10.2 |
| 7/16 inches | 17.9 |
| 5/16 inches | 12.8 |
| 3/16 inches | 7.65 |
| 3/8 inches | 15.3 |
| 9/16 inches | 22.9 |
| 1/2 inches | 20.4 |
| 5/8 inches | 25.5 |
| 3/4 inches | 30.6 |
| 11/16 inches | 28.1 |
| 13/16 inches | 33.2 |
| 1 inches | 40.8 |
| 7/8 inches | 35.7 |
| 1 1/8 inches | 45.9 |
| 1 3/8 inches | 56.1 |
| 1 1/4 inches | 51.0 |
| 1 5/8 inches | 66.3 |
| 1 1/2 inches | 61.2 |
| 1 3/4 inches | 71.4 |
| 2 inches | 81.6 |
| 1 7/8 inches | 76.5 |
| 2 1/8 inches | 86.7 |
| 2 1/2 inches | 102 |
| 2 1/4 inches | 91.8 |
| 10 inches | 408 |
| 2 3/4 inches | 112 |
| 3 1/4 inches | 133 |
| 3 inches | 122 |
| 3 1/2 inches | 143 |
| 4 inches | 163 |
| 3 3/4 inches | 153 |
| 4 1/4 inches | 173 |
| 5 inches | 204 |
| 4 1/2 inches | 184 |
| 5 1/2 inches | 224 |
| 6 1/2 inches | 265 |
| 6 inches | 245 |
| 7 inches | 286 |
| 8 inches | 326 |
| 7 1/2 inches | 306 |
| 9 inches | 367 |
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