DURA Neusilber

Standards: DIN8555 E21 - GP

Characteristics DURAWELD Neusilber is a nickel silver based alloy welding rod
including crushed sintered tungsten carbide fragments for the oxyacetylene welding process.

Typical applications

It is to expect on-armour-platings of tools and machine parts in the
mining, road construction, well digging, special civil engineering,
depression drilling technology, where strongest abrasion by minerals
may occur.

for best welding
To get a good result the welding areas should be properly cleaned of rust, grease, tinder and similar pollutions.
Apply a thin layer of NiCrBSi before hardfacing. Use a neutral or slightly carburizing flame with enough heat to be able to move the carbide chips around locating them properly before the nickel alloy freezes.
The selection of the grain size und the rod diameter depend on the
application and the size of the tool to be hard faced.
Lower particle sizes are recommended when the wear from abrasion is
dominant, bigger sizes for fitting a tool for stronger cutting strength.

Weld metal analysis
(typical, wt. %)
Grain sizes mm
2,0 - 4,0 mm
4,0 - 6,0 mm
6,0 - 8,0 mm
8,0 - 10,0 mm


5,00 kg
5,00 kg
5,00 kg
5,00 kg

delivery: Rod length:
Sintered tungsten carbide:
CuNiZn- Matrix:
12 x 450 mm
60 %
ca. 40

Statements on composition and application are just for the applier.s information. Statements on mechanical properties always refer to the all-weld-metal according to valid standards. DURAWELD may change the characteristics of its products without notice. We recommend the applier to check our products for their special application autonomously.