ASTM A 612 steel plate/sheet for boilers and Pressure Vessels steels
ASTM A 612 steel plate/sheet, ASTM A 612 steel plate/sheet, under EN standard, we can regardA 612 steel plate/sheet for boilers and Pressure Vessels steels.
ASTM A 612 steel plate/sheet is for boilers and Pressure Vessels steels, it is a normalized steel plate and sheet which is mainly used for building pressure vessels and boilers and pipes for hot liquid.
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The chemical composition of A 612 steel
| Element | Max % | Element | max % |
| C | 0.18 | Cu | 0.30 |
| Si | 0.50 | Mo | 0.08 |
| Mn | 0.90-1.70 | N | 0.02 |
| P | 0.03 | Nb | 0.05 |
| S | 0.03 | Ni | 0.50 |
| AL | - | Ti | 0.03 |
| Cr | 0.30 | V | 0.10 |
| Nb+Ti+V | 0.12 |
The mechanical properties of A 612 steel
| Grade | Material | Thickness | Yield Strength | Tensile Strength | Elongation |
| (mm) | MPa (min) | MPa | % (min) | ||
| A 612 | 1.0566 | ≤ 16 | 355 | ||
| 16 > to ≤35 | 355 | ||||
| 35 > to ≤50 | 345 | ||||
| 50 > to ≤70 | 325 | 490-630 | 22 | ||
| 70 > to ≤100 | 315 | 470-610 | 21 | ||
| 100 > to ≤150 | 295 | 450-590 | 21 | ||
| >150 | 1) | 1) | 1) |
The impact test of A 612 steel
| Type | Usual Dekivery Condition | Norminal Thickness (mm) | Impact Energy KV min[J] at temperature [°C] | |||||||||
| Longitudinal | Longitudinal | |||||||||||
| -50 | -40 | -20 | 0 | +20 | -50 | -40 | -20 | 0 | +20 | |||
| A 612 | N | 5-150 | 27 | 34 | 47 | 55 | 63 | 16 | 20 | 27 | 34 | 40 |
TAG:A 622gr.A,B,C; A 612 ; A 537class 1; A 285gr.A,B,C; A515gr.55,60,65,70 ;A455;A442 gr.55,60
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