A204 GradeA Molybednum Steel Plates
ASTM A204 boiler steel plate is a molybdenum alloy steel plate, which is mainly suitable for welding boilers and high temperature pressure vessels. According to the molybdenum content, ASTM A204 container steel plate is divided into 3 grades: A, B, C.
ASTM A204 Grade A belongs to alloy steel. Another common name for ASTM A204 Grade A alloy steel is UNS K11820. A204 Grade A chromium-molybdenum alloy steel is a molybdenum alloy steel material used to manufacture high temperature pressure vessels.
A204 grade a steel boiler plate chemical composition
| Grade | Thickness(mm) | C max | Mn max | P max | S max | Si max | Mo |
| SA204 Grade A | t≤25 | 0.18 | 0.90 | 0.025 | 0.025 | 0.15-0.40 | 0.45-0.60 |
| 25<t≤50 | 0.21 | ||||||
| 50<t≤100 | 0.23 | ||||||
| 100<t | 0.25 |
a204 grade a Boiler Plate Steel mechanical property
| Mechanical Property | A204 Grade A |
| Tensile strength, kis [MPa] | 65-85 [450-585] |
| Yield strength, min, kis [MPa] | 37 [255] |
| Elongation in 8 in. [200 mm], min, % | 19 |
| Elongation in 2 in. [50 mm], min, % | 23 |
a204 grade a pressure vessel steel plate Weight Chart
| Plates Thickness (mm) |
Weight (kg/m2) |
|---|---|
| 1.6 | 12.6 |
| 3 | 23.6 |
| 2.5 | 19.6 |
| 2.0 | 15.7 |
| 3.2 | 25.1 |
| 4 | 31.4 |
| 5 | 39.3 |
| 6 | 47.1 |
| 10 | 78.5 |
| 12.5 | 98.1 |
| 8 | 62.8 |
| 20 | 157 |
| 35 | 275 |
| 22.5 | 177 |
| 15 | 118 |
| 30 | 236 |
| 32 | 251 |
| 25 | 196 |
| 40 | 314 |
| 45 | 353 |
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