Ship’s mooring and towing fittings –Welded steel bollards for sea-going vessels.

ISO 13795:2012

Materials

Plates:weldable steel plates having a yield point of not less than 235N/mm2.
Post tubes:weldable steel plates having a yield point of not less than 235 N/mm2 or equivalent steel tubes.

Manufacturing and inspection

All surfaces of the bollards including welding shall be free from any visible flaws or imperfections.
All surfaces in contact with the ropes shall be free from surface roughness or irregularities likely to cause damage to the ropes by abrasion.
The bollards shall be coated externally with an anti-corrosion protective finish.
A low-friction surface coating is not recommended so as to increase the holding force of the mooring ropes under figure-of-eight belay.
Type Type A :with compact base plate. Type B:with wide base plate.

Type A

Nominal size Dn D1 D2 D3 D4 H1 H2 H3 H4 b L E t t1 t2 R
150 165.2 185 - 80 330 90 70 60 155 400 - 8.0 6 6 40
200 216.3 240 - 130 395 115 70 60 205 500 - 8.0 6 6 50
250A 267.4 290 - 160 505 135 90 75 250 630 - 12.0 9 8 60
250B 267.4 290 - 160 505 135 90 75 250 630 - 10.0 8 7 60
300A 318.5 340 150 185 600 150 110 85 290 800 300 21.5 16 9 70
300B 318.5 340 150 185 600 150 110 85 290 800 300 12.0 9 9 70
350A 355.6 380 170 200 685 175 130 105 340 890 350 16.0 19 11 80
350B 355.6 380 170 220 685 175 130 105 340 890 350 14.0 10 9 80
400A 406.4 430 190 230 730 185 145 115 380 1000 380 28.0 20 13 85
400B 406.4 430 190 250 730 185 145 115 380 1000 380 15.0 11 11 85
450A 457.2 480 210 265 770 195 160 120 425 1100 410 29.0 21 14 90
450B 457.2 480 210 285 770 195 160 120 425 1100 410 14.5 11 11 90
500A 508.0 530 235 295 830 230 200 150 480 1250 460 32.0 23 16 100
500B 508.0 530 235 320 830 230 200 150 480 1250 460 14.5 11 11 100
550A 558.8 580 255 330 900 270 200 180 520 1380 540 31.0 22 16 110
550B 558.8 580 255 350 900 270 200 180 520 1380 540 21.0 16 11 110
600 609.4 630 280 365 950 300 200 200 560 1550 600 33.0 23 16 120
Nominal size Dn Welding leg lengtha SWLb Calculated weightc (kg)
For mooring purposes(Figure-of-eight belay) For towing purposes (Eye spilice)
Z1 Z2 One-ropeuse Two-ropeuse
(kN) (t) (kN) (t) (kN) (t)
150 3.5 3.5 54 5.5 49 5.0 383 10 29
200 3.5 3.5 82 8.4 65 6.7 579 13 46
250A 5.5 4 156 16 134 14 1315 27 107
250B 5.5 4 127 13 108 11 215 22 91
300A 10.5 4 332 34 306 31 3365 62 281
300B 10.5 4 186 19 161 16 352 36 166
350A 12.5 5 443 45 418 43 5062 85 431
350B 7 4 244 25 216 22 2855 50 241
400A 12.5 6 594 61 521 53 6632 106 570
400B 8 5 326 33 269 27 3816 67 322
450A 12 7 753 77 612 62 8201 124 712
450B 8 7 382 39 292 30 4483 78 379
500A 12.5 8 992 101 757 77 10928 154 960
500B 8 5 457 47 326 33 5474 93 465
550A 11.5 8 1131 115 812 83 12635 165 1123
550B 11.5 5 781 80 541 55 9280 159 787
600 11.5 8 1401 143 948 97 15539 193 1391

a Welding with chamfering is available based on the same welding volume/strength.

b The SWL is the maximum applicable rope tension

The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A

c The calculated weight is for reference only.

Type B

Nominal size Dn D1 D2 H1 H2 h1 h2 b L L1 E t t1 t2 R
150 165.2 185 320 80 62 70 225 400 670 145 8.0 8 6 40
200 216.3 240 365 85 67 70 290 500 860 160 8.0 8 6 50
250A 267.4 290 470 100 79 90 360 630 1065 215 12.0 11 8 60
250B 267.4 290 470 100 79 90 360 630 1065 215 10.0 8 7 60
300A 318.5 340 575 125 95 110 430 800 1300 325 21.5 20 9 70
300B 318.5 340 575 125 95 110 430 800 1300 325 12.0 9 9 70
350A 355.6 380 655 145 108 130 480 890 1475 360 26.0 23.5 11 80
350B 355.6 380 655 145 119 130 480 890 1475 360 14.0 13 9 80
400A 406.4 430 705 160 121 145 550 1000 1630 400 28.0 26 13 85
400B 406.4 430 705 160 133 145 550 1000 1630 400 15.0 13.5 11 85
450A 457.2 480 745 170 131 160 620 1100 1810 430 29.0 26 14 90
450B 457.2 480 745 170 144 160 620 1100 1810 430 14.5 13 11 90
500A 508.0 530 790 190 146 200 690 1250 2040 500 32.0 29 16 100
500B 508.0 530 790 190 162 200 690 1250 2040 500 14.5 13 11 100
550A 558.8 580 840 210 167 200 750 1380 2240 560 31.0 28 16 110
550B 558.8 580 840 210 176 200 750 1380 2240 560 21.0 19 11 110
600 609.4 630 875 225 182 200 820 1550 2490 660 33.0 28 16 120
Nominal size Dn Welding leg lengtha SWLb Calculated Weightc (kg)
For mooring purposes (Figure-of-eight belay) For towing purposes(Eye splice)
Z1 Z2 Z3 Z4 one rope use Two-rope use
(KN) (t) (kN) (t) (KN) (t)
150 3 3 6 4 54 5.5 49 5.0 540 10 45
200 3 3 6 4 82 8.4 65 6.7 795 13 68
250A 4 4.5 8 6 156 16 134 14 1736 27 150
250B 3 3.5 6 4 127 13 108 11 216 22 119
300A 4 8 12 10 332 34 306 31 4365 62 383
300B 4 5 8 6 186 19 161 16 353 36 203
350A 5 10 14 12 443 45 418 43 6543 85 582
350B 4 5.5 8 6 244 25 216 22 3757 50 333
400A 6 11 16 13 594 61 521 53 8819 106 793
400B 5 5.5 8 7 326 33 269 27 4983 67 441
450A 7 11 16 13 753 77 612 62 10820 124 979
450B 7 5.5 8 7 382 39 292 30 5837 78 517
500A 8 12 17 15 992 101 757 77 14470 154 1321
500B 5 5.5 8 7 457 47 326 33 7102 93 631
550A 8 11 17 14 1131 115 812 83 16628 165 1530
550B 5 8 12 10 781 80 541 55 11949 159 1059
600 8 11 17 14 1401 143 948 97 20042 193 1850
a Welding with chamfering is available based on the same welding volume/strength b The SWL is the maximum applicable rope tension. The SWLs shown in this table are for reference only. These are based on the loadings as mentioned in Annex A c. The calculated weight is for reference only.