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OK 61.80

OK 61.80

OK 61.80 is an acid rutile Nb stabilised, LMA and low carbon electrode for welding Nb or Ti stabilised steels of the 19Cr10Ni type. It has very good resistance against intergranular corrosion. The ferrite content level is rather high to ensure quite a good hot cracking resistance. The ferrite may transform to brittle phases at elevated temperatures. To avoid excessive embrittlent of the welds the maximum working temperature is limited to 400°C.

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Typical Tensile Properties

ISO As welded
Elongation Tensile Strength Yield Strength
40 % 620 MPa 480 MPa
AWS As welded
Elongation Tensile Strength Yield Strength
- - -

Charpy V-Notch Properties

ISO As welded
Impact Value Testing Temperature
60 J 20 °C
40 J -60 °C

Weld Metal Analysis

MnCNbSiFerrite FNNiNCr
0.6 %0.03 %0.29 %0.7 %7 %10.0 %0.09 %19.5 %

Approvals: CE; EN 13479; DNV-GL; VL 347; NAKS/HAKC; 3.2-5.0 mm; VdTÜV; 00638
Classifications: EN ISO 3581-A; E 19 9 Nb R 1 2; SFA/AWS A5.4; E347-17; Werkstoffnummer; 1.4551

Approvals are based on factory location. Please contact ESAB for more information.

Alloy Type: Austenitic CrNi
Coating Type: Acid Rutile
Ferrite Content: FN 6-12
Welding Current: DC+, AC