United Kingdom · B.S.
762
BS 3059-1:1987 — Steel boiler and superheater tubes. Specification for low tensile carbon steel tubes without specified elevated temperature properties
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.17 | 0.23 | ||
| Cr | 10 | 12.5 | ||
| Mn | 1 | |||
| Mo | 0.8 | 1.2 | ||
| Ni | 0.3 | 0.8 | ||
| P | 0.03 | |||
| S | 0.03 | |||
| Si | 0.5 | |||
| V | 0.25 | 0.35 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| Seamless tubes, normalized | ≥470 | 720–870 | ≥15 |
Creep
| Temperature ℃ | Time h | CRS |
|---|---|---|
| 480 | 10000.0h | 350.0 |
| 480 | 30000.0h | 324.0 |
| 480 | 50000.0h | 311.0 |
| 480 | 100000.0h | 294.0 |
| 480 | 150000.0h | 284.0 |
| 480 | 200000.0h | 277.0 |
| 480 | 250000.0h | 271.0 |
| 490 | 10000.0h | 319.0 |
| 490 | 30000.0h | 293.0 |
| 490 | 50000.0h | 281.0 |
| 490 | 100000.0h | 265.0 |
| 490 | 150000.0h | 255.0 |
| 490 | 200000.0h | 247.0 |
| 490 | 250000.0h | 242.0 |
| 500 | 10000.0h | 290.0 |
| 500 | 30000.0h | 265.0 |
| 500 | 50000.0h | 254.0 |
| 500 | 100000.0h | 237.0 |
| 500 | 150000.0h | 228.0 |
| 500 | 200000.0h | 221.0 |
| 500 | 250000.0h | 215.0 |
| 510 | 10000.0h | 264.0 |
| 510 | 30000.0h | 240.0 |
| 510 | 50000.0h | 228.0 |
| 510 | 100000.0h | 212.0 |
| 510 | 150000.0h | 203.0 |
| 510 | 200000.0h | 196.0 |
| 510 | 250000.0h | 190.0 |
| 520 | 10000.0h | 240.0 |
| 520 | 30000.0h | 216.0 |
| 520 | 50000.0h | 205.0 |
| 520 | 100000.0h | 189.0 |
| 520 | 150000.0h | 179.0 |
| 520 | 200000.0h | 172.0 |
| 520 | 250000.0h | 167.0 |
| 530 | 10000.0h | 217.0 |
| 530 | 30000.0h | 194.0 |
| 530 | 50000.0h | 183.0 |
| 530 | 100000.0h | 167.0 |
| 530 | 150000.0h | 157.0 |
| 530 | 200000.0h | 151.0 |
| 530 | 250000.0h | 145.0 |
| 540 | 10000.0h | 196.0 |
| 540 | 30000.0h | 173.0 |
| 540 | 50000.0h | 162.0 |
| 540 | 100000.0h | 146.0 |
| 540 | 150000.0h | 137.0 |
| 540 | 200000.0h | 130.0 |
| 540 | 250000.0h | 125.0 |
| 550 | 10000.0h | 176.0 |
| 550 | 30000.0h | 153.0 |
| 550 | 50000.0h | 142.0 |
| 550 | 100000.0h | 127.0 |
| 550 | 150000.0h | 118.0 |
| 550 | 200000.0h | 112.0 |
| 550 | 250000.0h | 107.0 |
| 560 | 10000.0h | 157.0 |
| 560 | 30000.0h | 135.0 |
| 560 | 50000.0h | 124.0 |
| 560 | 100000.0h | 109.0 |
| 560 | 150000.0h | 101.0 |
| 560 | 200000.0h | 95.0 |
| 560 | 250000.0h | 90.0 |
| 570 | 10000.0h | 139.0 |
| 570 | 30000.0h | 117.0 |
| 570 | 50000.0h | 107.0 |
| 570 | 100000.0h | 93.0 |
| 570 | 150000.0h | 86.0 |
| 570 | 200000.0h | 80.0 |
| 570 | 250000.0h | 76.0 |
| 580 | 10000.0h | 123.0 |
| 580 | 30000.0h | 102.0 |
| 580 | 50000.0h | 92.0 |
| 580 | 100000.0h | 80.0 |
| 580 | 150000.0h | 73.0 |
| 580 | 200000.0h | 68.0 |
| 580 | 250000.0h | 65.0 |
| 590 | 10000.0h | 107.0 |
| 590 | 30000.0h | 88.0 |
| 590 | 50000.0h | 79.0 |
| 590 | 100000.0h | 68.0 |
| 590 | 150000.0h | 62.0 |
| 590 | 200000.0h | 58.0 |
| 590 | 250000.0h | 56.0 |
| 600 | 10000.0h | 93.0 |
| 600 | 30000.0h | 75.0 |
| 600 | 50000.0h | 68.0 |
| 600 | 100000.0h | 59.0 |
| 600 | 150000.0h | 54.0 |
| 600 | 200000.0h | 50.0 |
| 600 | 250000.0h | 48.0 |
| 610 | 10000.0h | 81.0 |
| 610 | 30000.0h | 65.0 |
| 610 | 50000.0h | 59.0 |
| 610 | 100000.0h | 51.0 |
| 610 | 150000.0h | 46.0 |
| 610 | 200000.0h | 44.0 |
| 610 | 250000.0h | 41.0 |
| 620 | 10000.0h | 71.0 |
| 620 | 30000.0h | 57.0 |
| 620 | 50000.0h | 51.0 |
| 620 | 100000.0h | 44.0 |
| 620 | 150000.0h | 40.0 |
| 620 | 200000.0h | 38.0 |
| 620 | 250000.0h | 36.0 |
| 630 | 10000.0h | 62.0 |
| 630 | 30000.0h | 50.0 |
| 630 | 50000.0h | 45.0 |
| 630 | 100000.0h | 38.0 |
| 630 | 150000.0h | 35.0 |
| 630 | 200000.0h | 32.0 |
| 630 | 250000.0h | 30.0 |
| 640 | 10000.0h | 54.0 |
| 640 | 30000.0h | 44.0 |
| 640 | 50000.0h | 39.0 |
| 640 | 100000.0h | 33.0 |
| 640 | 150000.0h | 30.0 |
| 650 | 10000.0h | 48.0 |
| 650 | 30000.0h | 38.0 |
| 650 | 50000.0h | 34.0 |
| 650 | 100000.0h | 28.0 |
| 660 | 10000.0h | 42.0 |
| 660 | 30000.0h | 33.0 |
| 660 | 50000.0h | 29.0 |
| 670 | 10000.0h | 37.0 |
| 670 | 30000.0h | 29.0 |
| 680 | 10000.0h | 33.0 |