OK 74.70
SMAW


Welding current, A
DC+(-)


ClassificationsApprovalsTypical all weld metal compositionTypical properties all weld metal
SFA/AWS A5.5
E8018-G
EN 499
E 50 4 MnMo B 42 H5
SeprosUNA 485155
VNIIST 
C0,08
Si0,4
Mn1,5
Mo0,4
Redrying temperature, C
350
Redrying time, hours
2
Recovery
115%
Yield stress, MPa
540
Tensile strength, MPa
630
Elongation, %
26
Elongation, %
26
Charpy V
Test temps, CImpact values, J
-20110
-4080
-6050

Diameter, mm3,24,04,05,0
Length, mm 350 350 450 450
Arc voltage, V 23 23 24 23
Welding current, A 80-140 90-190 90-190 150-250
N. Kg weld metal/kg electrodes 0,58 0,61 0,63 0,65
B. No. of electrodes/kg weld metal 50,0 31,6 23,4 15,0
H. Kg weld metal/hour arc time 1,14 1,60 1,66 2,30
T. Burn-off time, secs/electrode 63 71 93 102

 

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