MCU Si3
Standards
AWS/ASME SFA - 5.7 ERCuSi-A
EN ISO 24373 S Cu 6560 (CuSi3Mn1)
TS EN ISO 24373 S Cu 6560 (CuSi3Mn1)
DIN M. No. 2.1461
Properties and Applications
3% Silicon alloyed copper wire electrode for GMA (MIG) welding of copper(Cu), Cu-Si (silicon bronze), Cu-Zn (brass) and as well as surfacing of unalloyed or medium alloyed steels or cast irons. Due to less Zn burn and corrosion resistant weld metal, suitable for joining of galvanized steels. Resulted Zn burn is less and weld metal is corrosion resistant in galvanized steels. For large workpieces e.g. thicknesses exceeding 5 mm, a preheat at about 250°C is recommended.
Typical Chemical Features of the Welding Wire
Type of AnalysisSiMnCu
Welding Wire2.900.8096.30
Typical Physical Analysis of the Weld Metal (%)
Density (gr/cm³)Conductivity (Sm/mm²)
0.000.25-0.28
Typical Mechanical Values of Weld Metal(%)
Test ConditionProtection GasYield Strength (N/mm²)Tensile Strength (N/mm²)Elongation A5 (%)Hardness (HB)
As weldedI11203504080

* Chemical compositon and mechanical properties are valid when using shielding gas EN ISO 14175 - I1 (%100 Ar) .

Application Information
Welding Positions :

Polarity:

Protection Gas:

I3 I1 I2

Welding Parameters & Efficiency :

Diameter (mm)
0.80
1.00
1.20
Packaging Information
Product CodeDiameter (mm)Quantity per BoxBox Gross Weight (kg)Boxes per Outer BoxOuter Box Gross Weight (kg)Packaging Type
25003B1GM20.80200 kg207.501207.50Fiber Drum
25003BAKM20.801 kg1.101415.70Plastic Spool (D100)
25003BBAM20.805 kg5.3015.30Plastic Spool (D200)
25003BHAM20.8015 kg15.80115.80Plastic Spool (D300)
25003D1GM21.00200 kg207.501207.50Fiber Drum
25003DAKM21.001 kg1.101415.70Plastic Spool (D100)
25003DBAM21.005 kg5.3015.30Plastic Spool (D200)
25003DHAM21.0015 kg15.80115.80Plastic Spool (D300)
25003EHAM21.2015 kg15.80115.80Plastic Spool (D300)
Storage & Re-Drying Information
>Shouldn t be exposed to high statical load and impact.
>It should be stored in a dry room (relative humidity < 50%, room temperature > 20°C) on wooden pallets.