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SOLUTIONS: Copper and Copper Alloys

Bronze

Bronze is principally an alloy of copper and tin, which may also contain small quantities of other alloys.

contain up to 15% aluminium. Other alloy elements are Fe, Ni and Mn. Nickel aluminium bronze contains Cu 79%, Al 9.5%, Ni 5%, Fe 4.2%, Mn 2.3%. This alloy shall not be preheated before welding.

Phosphor bronze contains 0.05% to 0.1% phosphorus.

Lead bronze is used in bearings. Sn 10%, Pb 5–25%, remainder copper. Gun metal, Cu 88%, Sn 10%, Zn 2%.

2.08

Manganese aluminium bronze is used for ships’ propellers and consists of Al 9–10%, Mn 11%, Fe 2–3%, Ni 1–2% and the remainder copper. Welding: ALBRONZE-344

Welding: TINBRO-341

Brazing: AG 45, AG 60 and AG 60/45 FLUX FC-BRONZE and BRONZE FLUX FC-WEARBRO and

WEARBRO FLUX

Brazing: AG 45, AG 60 and AG 60/45 FLUX FC-BRONZE and BRONZE FLUX FC-WEARBRO and

WEARBRO FLUX

Aluminium bronze (Cu + Al) This type of bronze has good strength properties, may be machined, and is also suitable for casting. The main advantage of these bronzes is their excellent resistance to corrosion in seawater which makes them suitable for ships’ propellers, etc. These alloys

Bronze Tin bronze (Phosphor bronze) Lead bronze

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Gun metal

Nickel bronzes Cunifer

Aluminium bronzes NiAl

MnAl