OK 48.08
SMAW
Type Basic

OK 48.08 is an LMA electrode with very good mechanical properties suitable for demanding applications, e.g. offshore. The weld metal contains approximately 1% Ni for high impact values down to -40°C. The coating is of the latest LMA type for optimum resistance to porosity and hydrogen cracking. OK 48.08 is CTOD tested.
Welding current, A
AC, DC+(-) OCV 65 V


ClassificationsApprovalsTypical all weld metal compositionTypical properties all weld metal
SFA/AWS A5.1
E7018
EN ISO 2560-A
E 42 4 B 32 H5
ABS3H5 3Y
DB10.039.31
DNV4 Y40H5
GL4YH5
LR4Y40 H15
SeprosUNA 409819
VdTÜV05778
CEEN 13479
C0,06
Si0,4
Mn1,2
Ni0,8
P³0,02
S0,015
Cr³0,1
Mo³0,06
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
480
Tensile strength, MPa
560
Elongation, %
30
Elongation, %
30
Charpy V
Test temps, °CImpact values, J
-20160
-40130
-50100
-6060

Diameter, mm2,02,53,23,24,04,05,06,0
Length, mm 300 350 350 450 350 450 450 450
Arc voltage, V 22 27 22 22 22 22 23 26
Welding current, A 55-80 75-110 110-150 110-150 150-200 150-200 190-275 220-360
N. Kg weld metal/kg electrodes 0,57 0,57 0,62 0,66 0,66 0,69 0,69 0,66
B. No. of electrodes/kg weld metal 135,1 88,2 42,3 30,0 26,5 20,3 14,0 10,0
H. Kg weld metal/hour arc time 0,6 1,0 1,3 1,4 2,0 2,0 3,0 3,8
T. Burn-off time, secs/electrode 42 41 66 85 68 90 85 95

 

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