DESCRIPTION
N-CuSn-C is an electrode for copper alloys which may form deposited metal of phosphor bronze. This deposited metal has weldability, mechanical properties and also has an excellent corrosion and abrasion resistant. Therefore, this is suitable for welding of similar or dissimilar metal such as various kinds or copper alloy and steel.
APPLICATIONS
Used for welding of various kinds of copper alloys such as phosphor bronze, brass and gun metal etc., and for joining two metals of different kinds such as copper alloys to steel, bronze and brass etc. Also this is suitable for surfacing or repairing of gears , bearings, electrode holders, and for filing defects of cast iron, cast copper alloys.
INSTRUCTION FOR WELDING
(1) Preheating and interpass temperature are required.
For phosphor bronze and gun metal …………………………… 150~200ºC For brass …………………………………………………………... 250~300ºC
(2) Don’t use too much weaving.
The bead width should be kept within 3 times of rod diameter.
(3) Apply hot peening on every bead because the structure of deposited metal is rough at as welded condition. Hot peening is effective to improvement of mechanical properties.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
Cu |
Al |
Fe |
Si |
Sn |
P |
|
|
|
Bal |
- |
0.17 |
- |
7.80 |
0.11 |
|
|
|
TYPICAL ALL WELD MECHANICAL PROPERTIES:
Yield Point
N/mm2 (Ksi) |
Tensile Strength
N/mm2 (Ksi) |
Elongation
% |
HARDNESS
HB |
- |
390 (57) |
30 |
90-100 |
RECCOMMENDED CURRENTS: Ampere (DC+)
Size |
Dia |
3.2 |
4.0 |
5.0 |
|
(mm) |
Length |
350 |
350 |
350 |
|
Current
Range |
Flat |
70-110 |
110-150 |
140-180 |
|
|
|
WELDING POSITIONS:
FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD
EXPORT Packing: 5Kg plastic container, then 4 5kg containers in master carton box
LOCAL Packing: 5Kg paper box in shrink wrapped plastic
Other special requests for packing such as big spools or the like can be accommodated. |
