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Description: ASTM A622 boiler vessel plate is a carbon manganese silicon steel with good low-temperature notch toughness, mainly used for medium to low temperature pressure vessels.Pressure Vessel Plate of ASTM A622 is available in 3 Class: Class A, Class B, Class C. ...
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ASTM A622 boiler vessel plate is a carbon manganese silicon steel with good low-temperature notch toughness, mainly used for medium to low temperature pressure vessels.
Pressure Vessel Plate of ASTM A622 is available in 3 Class: Class A, Class B, Class C. The differents is the percentage of manganeseļ¼ make the different Yield strength and Tensile strength.
Thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirement. Thickness over 40mm, plates should be normalizing, Thickness less than 40mm, plates of Class B and Class C delivery in rolling condition.
ASTM A622 steel chemical components:
| ASTM A 662 | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Class A | 0.17 | 0.13-0.45 | 0.84-1.46 | 0.025 | 0.025 |
| Class B | 0.22 | 0.13-0.45 | 0.79-1.62 | 0.025 | 0.025 |
| Class C | 0.24 | 0.13-0.55 | 0.92-1.72 | 0.025 | 0.025 |
ASTM A622 steel mechanical property:
| ASTM A662 | Yield strength | Tensile strength | Elongation gauge length 8in. | Elongation gauge length 2in. |
|---|---|---|---|---|
| kis [MPa] | kis [Mpa] | [200mm](%) | [50mm](%) | |
| Class A | 40 [275] | 58-78 [400-500] | 20 | 23 |
| Class B | 40 [275] | 65-68 [450-585] | 20 | 23 |
| Class C | 43 [295] | 70-90 [485-620] | 18 | 22 |
ASTM A622 steel equivalent to
| ASTM A662 | EN10028 | JIS | ISO |
|---|---|---|---|
| Class A | - | G3115-SPV235 G3126-SPV235 |
- |
| Class B | P295GH | - | P290 |
| Class C | - | G3115-SPV315 | P315 |
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