OK 94.25

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Mô tả

OK 94.25

Electrode for welding copper and bronzes, especially tin bronzes. It is also suitable for cladding steels and for small-scale repair work in weldable cast irons.


For the repair and construction of parts in casting such as:

  • valves
  • pumps
  • housings
  • bearing surfaces


Classifications: DIN 1733:(EL-CuSn7)
Approvals: Seproz UNA 272581

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


Welding Current: DC+
Alloy Type: Copper alloy
Coating Type: Basic


Typical Tensile Properties
Condition Yield Strength Tensile Strength Elongation
As welded 235 MPa 330-390 MPa 25 %


Typical Charpy V-Notch Properties
Condition Testing Temperature Impact Value
As welded 20 °C 25 J
As welded 0 °C 20 J


Typical Weld Metal Analysis %
Mn Cu Sn
0.4 93 6.5


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
2.5 x 350 mm 60-90 A 22 V 0.71 77.0 39 s 1.20 kg/h
3.2 x 350 mm 90-125 A 24 V 0.72 46.0 40 s 1.90 kg/h
4.0 x 350 mm 125-170 A 25 V 0.74 30.5 41 s 2.90 kg/h

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