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OK Femax 39.50
SMAW
Type Acid
OK Femax 39.50 is a very fast, high-recovery, acid electrode for horizontal-vertical fillets, lap and butt joints in mild steels. The electrode gives a nice profile with a very good slag cover. The slag is porous and easy to deslag. Tolerates a wide range of bead run-out lengths.
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 | | E7027 | | EN ISO 2560-A | | E 42 2 RA 53 |
| | ABS | 3, 3Y | |
| BV | 3Y | |
| DB | 10.039.07 | |
| DNV | 3 | |
| GL | 3Y | |
| LR | 3, 3Y | |
| PRS | 3 | |
| RINA | 3Y | |
| VdTÜV | 00636 | |
| CE | EN 13479 | |
| | C | 0,095 | | Si | 0,3 | | Mn | 0,8 | | P | ³0,03 | | S | ³0,03 |
| Redrying temperature, °C
200
Redrying time, hours
2
Recovery
160%
Yield stress, MPa
450
Tensile strength, MPa
520
Elongation, %
27
Elongation, %
27
| Charpy V | | Test temps, °C | Impact values, J | | +20 | 85 | | -20 | 70 | | -40 | ²28 | | | | |
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| Diameter, mm | 3,2 | 4,0 | 5,0 | 6,0 | | Length, mm | 450 | 450 | 450 | 450 | | Arc voltage, V | 31 | 32 | 37 | 35 | | Welding current, A | 130-170 | 150-230 | 200-350 | 280-400 | | N. Kg weld metal/kg electrodes | 0,68 | 0,70 | 0,70 | 0,71 | | B. No. of electrodes/kg weld metal | 22,6 | 15,6 | 10,1 | 6,6 | | H. Kg weld metal/hour arc time | 2,3 | 3,2 | 5,5 | 6,4 | | T. Burn-off time, secs/electrode | 69 | 71 | 65 | 86 |
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