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How to choose the material of the sleeve. Copper, Brass or bronze

Update:29 Nov 2019

Copper sleeves are currently used on many valves, water […]

Copper sleeves are currently used on many valves, water pipes, air conditioning internal and external machine connection pipes, radiators and other equipment. There are many choices in its manufacturing materials, which can be selected according to different use scenarios.

Brass sleeves are generally made of brass, high-strength brass, tin bronze and aluminum bronze.

Brass is a copper alloy with zinc as the main additive element. It has a beautiful yellow color and is collectively called brass. The copper-zinc binary alloy is called ordinary brass or simple brass. Brass is often used in the manufacture of valves, water pipes, connecting pipes for air conditioners and radiators, and radiators. If it is a multiple alloy composed of two or more elements, it is called special brass. Special brass is also called special brass, which has high strength, high hardness and strong chemical resistance. Brass has strong wear resistance. Manufacture of sheets, bars, rods, pipes, cast parts, etc. The copper content is 62% ~ 68%, the plasticity is strong, and the pressure-resistant equipment is manufactured.

Bronze originally refers to copper-tin alloys. Later copper alloys other than brass and white copper are called bronzes, and they are often named before the names of the main added elements.

The tin bronze has good casting performance, anti-friction performance and good mechanical properties, and is suitable for manufacturing bearings, worm gears, gears, etc.

Aluminium can improve the hardness, hardness and corrosion resistance of brass, but reduce the plasticity. It is suitable for use as a condensing pipe and other corrosion-resistant parts.