The ASTM A204 standard specifies pressure vessel plates made from alloy steel with molybdenum. ASTM A204 Grade A is utilized by fabricators serving industries, particularly in the oil, gas, and chemical supply sectors. It offers supplementary technologies such as HC (Hydrogen Controlled) testing, NACE MR0175 compliance, and various levels of toughness (Z15, Z25, Z35) and conditions (S1, S2, S3, etc.) for enhanced suitability in corrosive environments and critical applications.
|
A |
65–85 [450–585] |
|
B |
70–90 [485–620] |
|
C |
75–95 [515–655] |
ASTM A204 GR A / B / C steel Plates Chemical Composition % :
| S |
P |
||||
| A204 gr A | 0.18 | 0.90 | 0.035 | 0.035 | 0.15-0.40 |
| A204 gr B | 0.20 | 0.90 | 0.035 | 0.035 | 0.15-0.40 |
| A204 g rC | 0.23 | 0.90 | 0.035 | 0.035 | 0.15-0.40 |
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