A.W.S. / ASTM A5.7        : ER Cu Si- A

DIN 1732                           : SG – Cu Si 3 WERKS. 2.1461

BS 2901 Pt.3                       : C9

MATRIX SF – Cu.Si.3

Application areas

This alloy is used for inert gas arc welding if metals with copper basis, as, for example, copper-silicium, copper-zinc and galvanized sheets, also connected to steel. This material is frequently used for fixing in artistic foundries, for welding galvanized sheets and even as coating of steel using the MIG and TIG methods. It is also suitable for surfaces subject to corrosion.

MECHANICAL CHARACTERISTICS

Tensile strength: 330-370 N/mm²

Elongation L=5d: 40% <=

Hardness: 80-90 HB

Chemical Composition

Cu                      remainfer

AI                       <0,01

Si                        2,8 - 4,0

Mn                     0,75 – 1,5

Sn                       <0,20

Zn                      <0,02

Pb                       <0,02

Fe                        <0,3

P                         <0,02

Other total       <0,40

SHIELDING GASES FOR GMAW / GTAW

Argon: DIN 32526 I1

Gas flow rate: 14-18 L./min

AVAILABLE SIZES

MIG 12,5-15 Kg D300 or K300/KS300 Spools

Diameter of the wire

0,08mm         1,00mm         1,20mm         1,60mm         2,00mm         2,40mm         3,20mm

TIG carton box of 10-25 kg

Diameter of the rods (x1000mm length)

1,60mm         2,00mm         2,40mm         3,20mm         4,00mm

More diameters and packaging upon request.

Mechanical properties quoted above are approximate values intended for guidance only.