Bronze (Copper-Tin and Copper-Aluminium Alloys)

Bronze differs from brass in its better mechanical properties and higher resistance to corrosion.

A distinction is made between the listed wrought alloys (up to 8.5% tin content) and the cast alloys (see cast bronze). Not only copper-tin alloys are regarded as bronzes but also copper-aluminium alloys, e.g. CuAl10Ni5Fe4 are referred to as bronzes („Aluminium bronzes“).

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Material code (as per DIN EN)	CuSn6	CuSn8	CuAl10Ni5Fe4
Material number (as per DIN EN)	CW452K	CW453K	CW307G
Material code (as per old DIN)	CuSn6	CuSn8	CuAl10Ni5Fe4
Material number (as per old DIN)	2.1020	2.1030	2.0966
Other names	Tin bronze, SnBz6	Tin bronze, SnBz8	Aluminium bronze, AlBz10Ni, CuAl10Ni, Aeterna WF26
Versions from stock
Properties	Excellent corrosion resistance, wear resistant, good cold working properties, good spring qualities, good solderability	Higher strength and corrosion resistance than CuSn6, wear resistant, good cold working properties, excellent flexibility, good solderability, good sliding properties	High strength even at high temperatures, high fatigue strength even when subject to corrosive stress, excellent wear resistance, corrosion resistant (sea water, neutral, acid and watery media), erosion resistant, cavitation resistant, scale resistant
Use	Springs of all types, plug-in connectors, spring pipes, screen wires	Bearings, sleeve bearings, sliding guides, suspended components, contact springs	Shafts, screws, wear parts, control parts for hydraulic equipment, condenser base plates
Dichte (g/cm³) ca.	8,80	8,80	7,60
Information des Dt. Kupferinstituts	CuSn6	CuSn8

Faux Secondary

Bronze (Copper-Tin and Copper-Aluminium Alloys)

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