OK 67.70

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Mô tả

OK 67.70

Acid rutile MMA-electrode giving an over alloyed weld metal. Suitable for welding acid resistant stainless steels to mild and low alloyed steels. Also suitable for welding buffer layers when surfacing mild steel with acid resistant stainless steel weld metal.

 

Classifications: EN ISO 3581-A:E 23 12 2 L R 3 2, SFA/AWS A5.4:E309LMo-17,

CSA W48:E309LMo-17, Werkstoffnummer :1.4459

Approvals: CE EN 13479, Seproz UNA 272580, ABS SS to C&C/Mn steels, BV 309Mo,

CWB CSA W48: E309LMo-17, DB 30.039.05, DNV 309 Mo, LR SS/CMn, RINA 309Mo, VdTÜV 02424

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

 

Welding Current: DC+, AC
Ferrite Content: FN 12-22
Alloy Type: Austenitic CrNi
Coating Type: Acid Rutile

 

Typical Tensile Properties
Condition Yield Strength Tensile Strength Elongation
ISO
As welded 510 MPa 610 MPa 32 %

 

Typical Charpy V-Notch Properties
Condition Testing Temperature Impact Value
ISO
As welded 20 °C 50 J
As welded -20 °C 35 J

 

Typical Weld Metal Analysis %
C Mn Si Ni Cr Mo N Ferrite FN
0.02 0.6 0.8 13.4 22.5 2.8 0.09 18

 

Deposition Data
Diameter Current Voltage kg weld metal/ kg electrodes Number of electrodes/kg weld metal Fusion time per electrode at 90% I max Deposition rate 90% I max
2.0 x 300 mm 40-60 A 26 V 0.58 147 48 s 0.6 kg/h
2.5 x 300 mm 50-90 A 29 V 0.57 94 45 s 0.9 kg/h
3.2 x 350 mm 60-120 A 27 V 0.59 47 61 s 1.4 kg/h
4.0 x 350 mm 85-180 A 31 V 0.61 32 56 s 2.0 kg/h
5.0 x 350 mm 110-250 A 30 V 0.59 20 64 s 2.7 kg/h

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