OK 61.80
SMAW
Type Rutile-acid

OK 61.80 is a niobium-stabilized, stainless steel, LMA electrode for welding of niobium or titanium-stabilized steels of the 19Cr10 Ni type.
Welding current, A
DC+, AC OCV 50 V


ClassificationsApprovalsTypical all weld metal compositionTypical properties all weld metal
EN 1600
E 19 9 Nb R 1 2
SFA/AWS A5.4
E347-17
Werkstoff Nr.
1.4551
GL4550
VdTV00638
CEEN 13479
C<0,03
Si0,7
Mn0,9
Cr20,0
Ni10,0
Mo<0,3
Nb<0,6
Cu<0,3
Redrying temperature, C
350
Redrying time, hours
2
Recovery
103-106
Yield stress, MPa
480
Tensile strength, MPa
620
Elongation, %
40
Elongation, %
40
Ferrite content
FN 6-12
Charpy V
Test temps, CImpact values, J
+2060
-8040

Diameter, mm2,02,53,24,05,0
Length, mm 300 300 350 350 350
Arc voltage, V 24 26 28 30 31
Welding current, A 40-65 50-90 70-130 90-180 140-250
N. Kg weld metal/kg electrodes 0,56 0,56 0,56 0,56 0,56
B. No. of electrodes/kg weld metal 150 97 50 33 21
H. Kg weld metal/hour arc time 0,7 1,0 1,4 2,0 2,9
T. Burn-off time, secs/electrode 35 38 53 55 60

 

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