A.W.S. / ASTM A5.7        : ER Cu AI – A1

DIN 1732                           : SG – Cu AI 8 WERKS. 2.0921

BS 2901 Pt.3                       : C28

MATRIX SF – Cu.AI.8

Application areas

The alloy SF-Cu. AI.8 has been developed for welding copper alloys and for coatings on steel, steel castings, nickel alloys and for fixing works in artistic foundries. Excellent for metal spraying. This material offers a very high resistance to seawater-corrosion and to the most commonly used acids in any concentration and at temperature they may be needed. High erosion resistance. Often used for welding galvanized steel sheets.

Typical applocations

Shipbuilding: propellers, pumps, shafts and valves, bearings, main shafts.

Chemical industry: gate valves, sleeves, pipes, heat exchangers, gear housings.

Automotive industry: maintenance if car-parts and tools, bearings in general and galvanized sheets.

Construction industry: welding and coating of aluminium-bronze with steel basis.

Recommended for coating wearing metal.

MECHANICAL CHARACTERISTICS

Tensile strength: 390-450 N/mm²

Elongation L=5d: 45% <=

Hardness: 80-110 HB

Hardness after work hardening: 140 HB

Conductivity: 8m/OHM mm²

Machanical propreties quoted above are approximate values, intended for guidance only.

Chemical Composition

Cu                      remainfer

AI                       7,5-9,5

Si                        <0,2

Mn                     <1,0

Ni                       <0,80

Zn                      <0,02

Pb                       <0,02

Fe                        <0,5

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.