1.1This specification2 covers relatively thin-walled forgings (including gas bottles) for pressure vessel use. Three types of carbon steel and six types of alloy steel are included. Provision is made for integrally forging the ends of vessel bodies made from seamless pipe or tubing.
| Current | Formerly |
| Grade A | Type I |
| Grade B | Type II |
| Grade C | Type III |
| Grade D | Type IV |
| Grade E Class 55 | Type V Grade 1 Class 55 |
| Grade E Class 65 | Type V Grade 1 Class 65 |
| Grade E Class 70 | Type V Grade 1 Class 70 |
| Grade F Class 55 | Type V Grade 2 Class 55 |
| Grade F Class 65 | Type V Grade 2 Class 65 |
| Grade F Class 70 | Type V Grade 2 Class 70 |
| Grade G Class 55 | Type V Grade 3 Class 55 |
| Grade G Class 65 | Type V Grade 3 Class 65 |
| Grade G Class 70 | Type V Grade 3 Class 70 |
| Grade H Class 55 | Type V Grade 4 Class 55 |
| Grade H Class 65 | Type V Grade 4 Class 65 |
| Grade H Class 70 | Type V Grade 4 Class 70 |
| Grade J Class 55 | Type V Grade 5 Class 55 |
| Grade J Class 65 | Type V Grade 5 Class 65 |
| Grade J Class 70 | Type V Grade 5 Class 70 |
| Grade K | Type VI |
| Grade L | Type VII |
| Grade J Class 110 | Type VIII |
| Grade M Class 85 | Type IX Class A |
| Grade M Class 100 | Type IX Class B |
1.2The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3Unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.
ASTM A372/A372M-13 History
ASTM A372/A372M-20
$30.00 $60.00
ASTM A372/A372M-20e1
$26.00 $52.00
ASTM A372/A372M-16
$30.00 $60.00
ASTM A372/A372M-13
$30.00 $60.00
ASTM A372/A372M-12
$30.00 $60.00
ASTM A372/A372M-10
$30.00 $60.00
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ASTM C1453-19
$21.00 $42.00
ASTM F2976-13(2019)
$34.00 $68.00
ASTM C652-19
$29.00 $58.00
ASTM C168-19
$32.00 $64.00











