OK 74.78
SMAW


Welding current, A
AC, DC+ OCV 65 V


ClassificationsApprovalsTypical all weld metal compositionTypical properties all weld metal
SFA/AWS A5.5
E9018-D1
EN 757
E 55 4 MnMo B 3 2 H5
ABS3H5, 3Y
BV3Y HH
DB10.039.17
DB20.039.02
DNV3 YH10
LR3, 3Y H15
SeprosUNA 409819
VdTÜV01027
CEEN 13479
C0,06
Si0,4
Mn1,5
Mo0,4
P³0,02
S³0,02
Cr³0,1
Ni³0,1
V³0,03
Nb³0,02
Cu³0,1
Al³0,03
Sn³0,01
Ti³0,03
Pb³0,02
As³0,03
Redrying temperature, °C
350
Redrying time, hours
2
Recovery
125%
Yield stress, MPa
600
Tensile strength, MPa
650
Elongation, %
24
Elongation, %
24
Charpy V
Test temps, °CImpact values, J
0100
-2090
-5160
-30²28

Diameter, mm2,02,53,24,05,06,0
Length, mm 300 350 450 450 450 450
Arc voltage, V 22 22 23 23 24 24
Welding current, A 55-80 75-100 105-140 140-190 190-260 240-340
N. Kg weld metal/kg electrodes 0,62 0,62 0,65 0,65 0,68 0,69
B. No. of electrodes/kg weld metal 136,0 73,0 32,0 20,5 14,0 10,0
H. Kg weld metal/hour arc time 0,7 0,9 1,3 1,8 2,6 3,6
T. Burn-off time, secs/electrode 38 55 86 97 100 103

 

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