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OK 63.41
SMAW
Type Rutile-acid
OK 63.41 is an extra-low carbon, acid-resistant, high-recovery LMA electrode of the 18Cr12.5Ni2.8Mo type. The electrode is intended for use in the flat position and gives smooth, shiny beads. The fillet weld has a slightly concave cross section.
Welding current, A
AC, DC+ OCV 55 V
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| Classifications | Approvals | Typical all weld metal composition | Typical properties all weld metal | | EN 1600 | | E 19 12 3 L R 5 3 | | SFA/AWS 5.4 | | E316L-26 | | Werkstoff Nr. | | 1.4430 |
| | DNV | 316L | |
| LR | 316L, 316LN | |
| VdTÜV | 01014 | |
| CE | EN 13479 | |
| | C | <0,03 | | Si | 0,7 | | Mn | 0,9 | | Cr | 18,0 | | Ni | 12,0 | | Mo | 2,8 | | Cu | <0,3 |
| Redrying temperature, °C
350
Redrying time, hours
2
Recovery
150%
Yield stress, MPa
460
Tensile strength, MPa
570
Elongation, %
35
Elongation, %
35
Ferrite content
FN 3-8
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 60 | | -60 | 52 |
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| Diameter, mm | 2,0 | 2,5 | 3,2 | 4,0 | 5,0 | | Length, mm | 300 | 300 | 350 | 450 | 450 | | Arc voltage, V | 32 | 34 | 36 | 37 | 42 | | Welding current, A | 45-70 | 60-90 | 80-130 | 110-180 | 170-240 | | N. Kg weld metal/kg electrodes | 0,61 | 0,61 | 0,58 | 0,60 | 0,61 | | B. No. of electrodes/kg weld metal | 103 | 65 | 35 | 17 | 11 | | H. Kg weld metal/hour arc time | 1,0 | 1,6 | 2,1 | 2,9 | 4,0 | | T. Burn-off time, secs/electrode | 36 | 35 | 50 | 70 | 82 |
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