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OK 63.80
SMAW
Type Rutile-acid
OK 63.80 is a stainless LMA electrode for welding Nb- or Ti-stabilized stainless steels of the 18Cr12Ni2-3Mo type. OK 63.80 is specially designed for welding Nb- and Ti-stabilized stainless steel corresponding to DIN Werkstoff Nr: 4573 and 4583.
Welding current, A
DC+, AC OCV 50 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | EN 1600 | | E 19 12 3 Nb R 3 2 | | SFA/AWS A5.4 | | E318-17 | | Werkstoff Nr. | | 1.4576 |
| | | C | <0,03 | | Si | 0,7 | | Mn | 0,9 | | Cr | 18,0 | | Ni | 12,0 | | Mo | 2,8 | | Nb | <0,6 | | Cu | <0,3 |
| Redrying temperature, °C
350
Redrying time, hours
2
Recovery
110
Yield stress, MPa
500
Tensile strength, MPa
614
Elongation, %
38
Elongation, %
38
Ferrite content
FN 6-12
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 55 | | -60 | 41 |
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| Diameter, mm | 2,0 | 2,5 | 3,2 | 4,0 | | Length, mm | 300 | 300 | 350 | 350 | | Arc voltage, V | 29 | 30 | 32 | 33 | | Welding current, A | 45-65 | 60-90 | 80-120 | 120-170 | | N. Kg weld metal/kg electrodes | 0,56 | 0,56 | 0,61 | 0,61 | | B. No. of electrodes/kg weld metal | 155 | 97 | 48 | 32 | | H. Kg weld metal/hour arc time | 0,8 | 1,1 | 1,4 | 2,1 | | T. Burn-off time, secs/electrode | 29 | 35 | 54 | 55 |
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