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Details
Brass is a copper-zinc alloy with good processing performance, high electrical conductivity and wear resistance, and is widely used. The following is a detailed description of brass:
1. Basic characteristics of brass
Composition and naming:
Brass is mainly composed of copper and zinc. Brass with different mechanical properties can be obtained by changing the zinc content. For example, brass with a zinc content of 18%-20% will be reddish yellow, while brass with a zinc content of 20%-30% will be brownish yellow.
The naming of brass is usually determined by the copper content, such as H62, which means ordinary brass with an average copper content of 62%.
Physical properties:
Brass has good electrical and thermal conductivity, which is a common property of copper alloys.
The melting point of brass varies depending on the copper content, generally between 934-967 degrees.
Mechanical properties:
Brass has excellent mechanical properties, high strength and plasticity, and can withstand cold and hot pressure processing.
Different types of brass have different mechanical properties. For example, H62 brass has good mechanical properties and cutting properties, and is suitable for manufacturing stress-bearing parts.
2. Types and applications of brass
Ordinary brass:
Such as H59, H62, H65, H68, etc., these brasses have good processing properties and moderate prices, and are widely used in various mechanical parts, hardware products, radiator parts, etc.
Special brass:
Add other elements (such as aluminum, nickel, manganese, etc.) to ordinary brass to improve its performance. For example, adding aluminum can improve the strength and corrosion resistance of brass; adding tin can improve the corrosion resistance of brass to seawater, which is called "naval brass".
Casting brass:
Mainly used for casting valves, pipe fittings, etc. This type of brass usually has good casting properties and corrosion resistance35.
3. Application fields of brass
Machinery manufacturing industry:
Brass is widely used in the machinery manufacturing industry due to its good mechanical properties and processing properties. Such as manufacturing precision instruments, ship parts, gun shells, etc.
Hardware products industry:
Brass is used to manufacture small hardware, daily necessities, screws and other parts. These products are usually required to have good wear resistance and corrosion resistance.
Musical instrument manufacturing:
Brass is widely used in the manufacture of Eastern gongs, cymbals, bells, trumpets and other musical instruments as well as Western brass instruments due to its unique timbre and good acoustic properties.
Other fields:
Brass is also used to manufacture various pipes such as air conditioning pipes, refrigerator pipes, oil pipes, as well as complex cold stamping and deep stamping parts such as radiator shells and bellows.
In summary, brass, as an important copper alloy material, is favored for its excellent performance and wide range of applications.
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