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Golden Bridge

Golden Bridge (D266) Electrode

Golden Bridge (D266) Electrode

SKU:D266-3/32-11

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D266

 



D266 is a high Mn-type surfacing welding electrode with low-hydrogen potassium coating, which can be used for both AC and DC applications. The surfacing work should be carried out with low current and narrow gap, by immediate hammering or water quenching when it is hot to reduce the tendency of cracks. The surfacing metal is austenitic high manganese steel, which has the characteristics of work hardening, toughness and wear resistance. Mo added to the weld meta improves its crack resistance and wear resistance.



The product is applicable for surfacing welding of wearable parts of all kinds of crushers, high manganese rails, buckets, bulldozers and other parts due to impact.

Chemical components of deposited metal (%)

Test item
C
Mn
Si
Mo
Example value 0.50 14.60 0.60 1.00
 

Hardness of surfacing layer:

Test item
HB
Example value 210
 

Reference current (AC, DC+)

Welding electrode diameter (mm)
Φ3.2
Φ4.0
Φ5.0
Welding current (A) 70-90 100-140 150-180
 




1. Before welding, the welding electrode should be baked at 300-350℃ for 1h.
2. For surfacing the worn high manganese steel work piece, the fatigue layer should be removed in advance, or treated by water toughening or primed with chrome manganese steel welding electrode (such as D277).
3. Surfacing welding will produce a lot of yellow smoke, so special attention should be paid on keeping air flowing and operating at upwind position.

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Diameter

* 3/32 inches (2.5 mm), * 1/8 inches (3.2 mm), * 5/32 inches (4.0 mm), * 3/16 inches (5.0 mm)
Package

11 lb (5 kg), 44 lb (20kg)