CEWELD


Dur RU (Ni) SMAW Stick Electrodes




Dur RU (Ni)

 
TYPE 
NiCrBSi based SMAW electrode filled with tungsten carbides for extreme wear resistant overlays.
APPLICATIONS 
The main applications are hardfacing and rebuilding of stabilisers and other oilfield tools where maximum protection is required. Also for augers, impellers, mixer plates in the brick and clay industry and on decanter screws in the food and chemical industry where corrosion resistance is needed. DUR RU (Ni) can be applied on all sorts of steels except on cast iron or Mn-steel. This alloy is the most wear resistant type in most hardfacing applications. In case of very fine dust abrasion It might happen that the matrix will be washed out and looses the imbedded Tungsten carbides, in this case another hardfacing product should be considdered..
PROPERTIES 

Dur RU(Ni) is a coated flux-cored tube for electric welding, a newly designed hard-surfacing product consisting of crushed tungsten carbide and a Ni-based alloy. Crushed cast carbide will guaranty a long life. Furthermore the Ni-based alloy provides an excellent corrosion resistance.

Dur RU (Ni) has excellent welding and wetting characteristics at very low currents. It is easy to use and inexperienced welders will have no difficulties to produce smooth deposits mainly without cracks. Multi-layer deposits are possible and worn parts can be rebuild without removing the old material. Dur RU (Ni) can be applied on all sorts of steels except on cast iron or Mn-steel.

CLASSIFICATION
AWS 
A 5.13: no class
EN ISO 
14700: E Ni20
DIN 
8555: E21-GF-UM-60-CGZ
SUITABLE FOR 

Scratchers, mixers, deep drilling, bentonit mixers, cement mixers, stabilisers, impellers, augers etc.

APPROVALS 
CE approved
WELDING POSITIONS: 

Ni + Cr + B + Si (Matrix)

Crushed tungsten carbides (WC2)

Rem

65%

MECHANICAL PROPERTIES

Heat

RP0,2

Rm

A5

Impact Energy (J) ISO-V

Hardness

Treatment

(N/mm2)

(N/mm2)

(%)

-20°C

-40°C

Matrix

Carbides

           

500 HV

2360 HV

REDRYING TEMPERATURE 
not required
WELDING PARAMETERS / PACKING

Welding Parameters

Packing

D (mm)

Length (mm)

Current (A) (DC+/AC)

kg / can

kg / 6pack

kg / 1000

4.0

350

100

5

30

 

5.0

350

120

5

30

 

6.0

350

160

5

30

 

8.0

350

160

5

30

 
PARTICLE SIZE
Tungsten particle sizes are standard 0,2-0,5 mm (other sizes are available on request)







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