OK 67.50

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Mô tả

OK 67.50

OK 67.50 is an acid rutile coated type for welding of austenitic-ferritic stainless steels of CrNiMoN 22 5 3 – and CrNiN 23 4-types. The duplex all weld metal offers a high strength level combined with good ductility. The pitting corrosion resistance is good and the all weld metal is not sensitive for stress corrosion cracking.

 

Classifications: EN ISO 3581-A:E 22 9 3 N L R 3 2, SFA/AWS A5.4:E2209-17, CSA W48:E2209-17,

Werkstoffnummer :1.4462

Approvals: CE EN 13479, Seproz UNA 272580, ABS Stainless*, BV 2209,

CWB CSA W48: E2209-17, DNV For duplex SS, GL 4462, VdTÜV 04368

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

 

Welding Current: DC+, AC
Ferrite Content: FN 35-50
Alloy Type: Duplex CrNiMoN
Coating Type: Acid Rutile

 

Typical Tensile Properties
Condition Yield Strength Tensile Strength Elongation
ISO
As welded 691 MPa 857 MPa 25 %

 

Typical Charpy V-Notch Properties
Condition Testing Temperature Impact Value
ISO
As welded 20 °C 50 J
As welded -30 °C 41 J

 

Typical Weld Metal Analysis %
C Mn Si Ni Cr Mo N Ferrite FN
0.03 0.8 0.8 8.8 23.2 3.2 0.16 42

 

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 30-65 A 29 V 0.55 152 33 s 0.7 kg/h
2.5 x 300 mm 50-90 A 27 V 0.58 91 38 s 1.0 kg/h
3.2 x 350 mm 80-120 A 28 V 0.58 47 55 s 1.4 kg/h
4.0 x 350 mm 90-160 A 29 V 0.58 32 59 s 1.9 kg/h
5.0 x 350 mm 150-220 A 30 V 0.58 20 64 s 2.8 kg/h

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