A387 Grade 22 Class 1 Plate for Industrial
A387 Gr22 Cl1 is a pressure vessel steel specially designed for use in high temperature environments. A387 Gr22 Cl1 PVQ steel plate has excellent resistance to oxidation and corrosion, so it can be used in industries such as petrochemicals, oil and gas.
The molybdenum content in the chemical composition of A387 Gr22 Cl1 pressure vessel steel sheet helps to increase its tensile strength, even at high temperatures. Compared to other carbon steels, A387 Gr22 Cl1 pressure vessel of steel plate has better heat resistance and exhibits better high temperature performance.
A387 Grade 22 Class 1 vessel Plate chemical composition
| Grade | C | Mn | P | S | Si | Cr | Mo |
| A387 Gr. 22 Cl.1 | 0.04 – 0.15 | 0.25 – 0.66 | 0.035 | 0.035 | 0.5 max | 1.88 – 2.62 | 0.85 – 1.15 |
A387 Grade 22 Class 1 boiler plate mechanical property
| Property | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|
|
Elastic modulus |
190 - 210 GPa |
Typical for Steel |
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|
Elongation |
16.6 % |
Predicted Value, A200 |
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|
18 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
A50 |
|
|
18.8 % |
Predicted Value, Transverse |
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|
20 % |
Predicted Value, A80 Transverse |
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|
22.2 % |
Predicted Value, A80 |
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|
25.9 % |
Predicted Value |
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|
Poisson's ratio |
0.3 [-] |
Typical for Steel |
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|
Reduction of area |
43.3 % |
Predicted Value, Transverse |
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|
45 % |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
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|
Shear modulus |
79.3 GPa |
Predicted Value |
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|
Shear strength |
628.2 MPa |
Predicted Value |
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|
Tensile strength |
415 - 585 MPa |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
|
|
Yield strength |
205 MPa |
Class 1, Annealed, Normalized and Tempered, or Quenched and Tempered |
ASTM A387 |
Plate |
|
|
254.7 MPa |
Predicted Value, RP1 |
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|
310.6 MPa |
Predicted Value, Transverse |
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|
320.5 MPa |
Predicted Value, RP1 Transverse |
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|
326.6 MPa |
Predicted Value, RP05 |
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|
334.7 MPa |
Predicted Value, RP02 |
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|
438 MPa |
Predicted Value, RP02 Transverse |
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|
452.7 MPa |
Predicted Value, RP002 |
A387 Grade 22 Class 1 boiler steel plate size range
| 2" | 1/2" | 3/16" | 1" | 4" |
| 1-1/2" | 3/8" | 1/8" | 3/4" | 3" |
| 2-1/2" | 5/8" | 1/4" | 1-1/4" |
A387 Grade 22 Class 1 pressure vessel plate Tolerance Chart
| Nominal thickness | within a plate Maximum thickness difference | |||||
| Nominal width | ||||||
| > 600 < 2000 | > 2000 < 2500 | > 2500 < 3000 | > 3000 < 3500 | > 3500 < 4000 | > 4000 | |
| > 150 < 250 | 1.4 | 1.5 | 1.6 | 1.6 | 1.7 | - |
| > 3 < 5 | 0.8 | 0.9 | 0.9 | - | - | - |
| > 80 < 150 | 1.3 | 1.4 | 1.5 | 1.5 | 1.6 | 1.7 |
| > 5 < 8 | 0.9 | 0.9 | 1.0 | 1.0 | - | - |
| > 15 < 25 | 1.0 | 1.1 | 1.2 | 1.2 | 1.3 | 1.4 |
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