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OK 55.00
SMAW
Type Basic
OK 55.00 is a reliable, high-quality, LMA electrode, particularly suitable for welding high strength low-alloy steels. The good, low temperature impact strength of the weld metal should be noted. The weld metal is also very resistant to hot cracking. The electrode is also suitable for welding high strength ship's steel A, D and E quality.
Welding current, A
AC, DC+ OCV 65 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | SFA/AWS A5.1 | | E7018-1 | | CSA W48 | | E4918-1 | | EN ISO 2560-A | | E 46 5 B 32 H5 |
| | ABS | 3H5, 3Y H5 | |
| BV | 3Y H5 | |
| CWB | CSA W48 | |
| DB | 10.039.03 | |
| DNV | 3YH10 | |
| GL | 3YH5 | |
| LR | 3, 3Y H5 | |
| RS | 3YHH | |
| Sepros | UNA 409819 | |
| VdTÜV | 00632 | |
| CE | EN 13479 | |
| | C | 0,07 | | Si | 0,5 | | Mn | 1,4 | | P | ³0,03 | | S | ³0,03 | | Cr | ³0,1 | | Ni | ³0,1 | | Mo | ³0,1 | | V | ³0,03 | | Nb | ³0,02 | | Cu | ³0,1 | | Al | ³0,03 | | Sn | ³0,01 | | Ti | ³0,03 | | Pb | ³0,02 | | As | ³0,03 |
| Redrying temperature, °C
350
Redrying time, hours
2
Recovery
125%
Yield stress, MPa
480
Tensile strength, MPa
590
Elongation, %
28
Elongation, %
28
| Charpy V | | Test temps, °C | Impact values, J | | -20 | 115 | | -50 | 50 |
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| Diameter, mm | 2,5 | 3,2 | 3,2 | 4,0 | 4,0 | 5,0 | 6,0 | | Length, mm | 350 | 350 | 450 | 350 | 450 | 450 | 450 | | Arc voltage, V | 23 | 23 | 24 | 23 | 24 | 24 | 25 | | Welding current, A | 80-110 | 110-140 | 110-140 | 140-200 | 140-200 | 200-270 | 215-360 | | N. Kg weld metal/kg electrodes | 0,64 | 0,62 | 0,69 | 0,62 | 0,70 | 0,72 | 0,72 | | B. No. of electrodes/kg weld metal | 65,8 | 41,1 | 30,0 | 28,0 | 19,0 | 13,0 | 9,0 | | H. Kg weld metal/hour arc time | 0,86 | 1,22 | 1,4 | 1,77 | 2,0 | 3,0 | 4,0 | | T. Burn-off time, secs/electrode | 64 | 72 | 88 | 73 | 94 | 94 | 98 |
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