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OK 94.25

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

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Specifications
Classifications	EN ISO 17777 : E Cu Z (CuSn7)

Welding Current	DC+
Alloy Type	Copper alloy
Coating Type	Basic

Tensile_Properties
Testing Condition	Yield Strength	Tensile Strength	Elongation
ISO
As Welded	235 MPa	360 MPa	25 %

Charpy Testing
Testing Condition	Testing Temp	Impact Value
ISO
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	Amps	Volts	Efficiency (Per)	Fusion time per electrode at 90Per I max	Deposition rate at 90Per
2.5 x 350 mm	60-90 A	22 V	71 %	39 sec	1.2 kg/h
3.2 x 350 mm	90-125 A	24 V	72 %	40 sec	1.9 kg/h
4.0 x 350 mm	125-170 A	25 V	74 %	41 sec	2.9 kg/h

Description	Product Number
OK 94.25 2.5x350mm 1/4 VP	94252530L0
OK 94.25 3.2x350mm 1/4 VP	94253230L0
OK 94.25 4.0x350mm 1/2 VP	94254030G0

Fact Sheets

OK 94.25

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OK 94.25

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