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Cymbals are made from four main alloys, all of them copper based. These are: bell bronze, malleable bronze, brass, and nickel silver.

Bell bronze, also known as bell metal, is the traditional alloy used for fine cymbals, many gongs, and, as the name suggests, bells. It is normally stated to be one part tin to four parts copper, that is 20% tin, and this is still the most common formula, but there has always been some variation. Larger and smaller bells are cast with differing amounts of tin, and some bell, gong, and cymbal makers use small but significant amounts of other elements, notably silver, gold, and phosphorus. Bell bronze is a two phase alloy, meaning some of the tin is not dissolved in the copper grains but exists between them. This makes the metal harder and more brittle than a single phase alloy,
and also affects the way the metal responds to hardening by hammering and lathing, and greatly restricts the use of mechanised techniques of manufacture. Major orchestras generally use bell bronze cymbals, which are capable of a greater dynamic range than any others. They are also generally the preferred cymbals of drum kit players.

In 1989 Paiste released professional cymbal series composed of sheet metal bronze with about 15% tin. Though the manufacturing requires the metal to be rolled hot at certain stages, it is not tempered like traditional B20 cymbals but annealed. Using this alloy allows for greater consistency between blanks compared to traditional cymbal alloy, and is more applicable to Paiste's 2002 production methods. Examples include Paiste Signatures, Traditionals and Dark Energy. Paiste calls this Signature Bronze or Sound Formula. For a time, Paiste produced no bell metal cymbals, but now produces high end cymbals of both this alloy and bell bronze. Since then, other manufactures followed the lead and implemented lines of high tin sheet metal alloy. Zildjian Project 391 series employed Paiste alloy explicitly, however many companies (Zildjian included) produce cymbals with B12 (Such as Zildjian ZHT, now S series) and B10 alloys. Meinl cymbals are well known for employing both alloys. There is some evidence that a similar sheet alloy was used by the Hammerax company (though with added iron and nickel).

Some of the finest traditional gongs and china type cymbals and nearly all zills are made from brass. However, it is not widely used in cymbals. Brass cymbals are inexpensive beginners' cymbals, not meant to last long; the rigidity of brass yields cymbals harsh in sound and very prone to cracks at the bell hole and the border. Many of the "show" cymbals provided by many drum kit manufacturers for use in shop window displays are also made from brass. These are typically very poor in tone, some even being disks of untreated metal and unplayable despite the reputable brand name they may bear. The brass for cymbals is about 38% zinc in copper, which is very easily worked, readily available as sheet metal, and easily the cheapest metal stock normally used for cymbals. The tone of brass cymbals tends to be warm but dull compared to any sort of tin bronze, and very few drummers exploit it. Examples of brass cymbals include: Harpy B, Meinl Marathon M38, Meinl Meteor, Meinl HCS, Orion Twister, Paiste 101, Paiste 302 and some Exotic Percussion, Pearl, Royal, Twister Series by Orion, Solar and Sbr by Sabian, Soultone Intro, UFIP M8, Planet Z by Zildjian. Nearly all zils of all makes are also made out of brass.

Nickel silver as used in cymbal making is an alloy of copper and nickel, and an alloy with about 12% nickel is used for some beginners' cymbals. A very few specialised high quality cymbals are also made from nickel silver, as are some top quality gongs tending to the more modern and exotic sounds. Some maintain that the term nickel silver should only be used for alloys containing an appreciable content of zinc, and would call this cymbal alloy nickel bronze instead, but the use of the term nickel silver for all cymbal bronzes with nickel as the main alloying metal is well established. Nickel silver is malleable and available as commercial sheet metal, and gives a bright tone but without the shimmer and sensitivity of tin bronzes. In the early to mid 20th century nickel alloy cymbals were far more widely produced and used, and so many older recordings were probably made using cymbals with a significant nickel content. Evelyn Glennie is particularly noted for exploiting the tones of nickel silver cymbals. Examples of nickel silver cymbals include: Some Foremost, Meinl Streamer and Marathon N12, Paiste 402, the original 1970s Paiste 101 (current 101s are Brass) and some Exotic Percussion, Sabian Signature Glennies Garbage, and some Zilco.

Cymbals have also been made from silicon and aluminum bronzes but these alloys have not become generally popular. Meinl FX9 is an alloy of 69% copper, 15% manganese, 15% zinc and 1% aluminium, and was used for the new Meinl Generation X line released in 2003. Previous Generation X models were made from malleable bronze. FX9 is described by Meinl as not being a bronze at all, and was previously described by their sales literature as containing tin rather than zinc. There is a minority view that the word "bronze" should be reserved for two phase alloys, which may be their usage here. Unlike cymbals, some gongs are made from several different metals fused together. Many different metals have been used. Parts of some traditional gongs, notably the bosses of some "nipple" gongs, are made from iron based alloys. A few independent cymbal makers have also used stainless steel and titanium to produce cymbals and gongs.