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OK 48.08

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OK 48.08


SMAW
Type Lime-basic

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



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ClassificationsApprovalsTypical all weld metal composition, %Typical mech. properties all weld metal
SFA/AWS A5.1
E7018-G
EN ISO 2560-A
E 42 4 B 32 H5
ABS3YH5
DB10.039.31
DNV4 Y40H5
GL4YH5
LR4Y40H5
VdTV05778
CEEN 13479
RS4YH5
C0,06
Si0,4
Mn1,2
Ni0,8
P0,02
S0,015
Cr0,1
Mo0,06
V0,03
Nb0,02
Cu0,1
Al0,03
Sn0,01
Ti0,03
Pb0,02
As0,03
Yield stress, MPa
480
Tensile strength, MPa
560
Elongation, %
26
Elongation, %
26
Charpy V
Test temps, CImpact values, J
-20160
-40130
-50100
-6060
Redrying temperature, C
350
Redrying time, hours
2
Recovery
125%

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, s/electrode 42 41 66 85 68 90 85 95

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