BRONZE

BRONZE 속성

BRONZE C화학적 특성, 용도, 생산

정의

Any of a group of copper-tin alloys usually containing 0.5–10% of tin. They are generally harder, stronger in compression, and more corrosion resistant than brass. Zinc is often added, as in gunmetal (2–4% zinc), to increase strength and corrosion-resistance; bronze coins often contain more zinc (2.5%) than tin (0.5%). The presence of lead improves its machining qualities.
Some copper-rich alloys containing no tin are also called bronzes. Aluminum bronzes, for example, with up to 10% aluminum, are strong, resistant to corrosion and wear, and can be worked cold or hot; silicon bronzes, with 1–5% silicon, have high corrosion-resistance; beryllium bronzes, with about 2% beryllium, are very hard and strong.

공업 용도

The term bronze is generally applied to anycopper alloy that has as the principal alloyingelement a metal other than zinc or nickel. Originallythe term was used to identify copper–tinalloys that had tin as the only, or principal,alloying element. Some brasses are calledbronzes because of their color, or because theycontain some tin. Most commercial copper–tinbronzes are now modified with zinc, lead, silver,or other elements.
Bronze is used in bearings, bushings, gears,valves, and other fittings both for water andsteam. Tin bronze, including statuary bronze,contains 2–20% tin; bell metal 15–25%; andspeculum metal up to 33%. Gun metal contains8–10% tin plus 2–4% zinc.
The properties of bronze depend on itscomposition and working. Phosphor bronze is tin bronze hardened and strengthened withtraces of phosphorus; it is used for fine tubing,wire springs, and machine parts. Lead bronzemay contain up to 30% lead; it is used for castparts such as low-pressure valves and fittings.Maganese bronze with 0.5 to 5% manganeseplus other metals, but often no tin, has highstrength. Aluminum bronze also contains no tin;its mechanical properties are superior to thoseof tin bronze, with up to 3% silicon, casts well,and can be worked hot or cold by rolling, forging,and similar methods. Beryllium bronze(also called beryllium copper) has about 2%beryllium and no tin. The alloy is hard andstrong and can be further hardened andstrengthened by precipitation hardening; it isone of the few copper alloys that responds toheat treatment, approaching three times thestrength of structural steel.

BRONZE 준비 용품 및 원자재

원자재

준비 용품

BRONZE 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	12711	58
Alfa Chemistry	+1-5166625404	Info@alfa-chemistry.com	United States	21317	58
LEAPCHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	43348	58
Aladdin Scientific	+1-833-552-7181	sales@aladdinsci.com	United States	57511	58
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30132	84
Beijing Ouhe Technology Co., Ltd	010-82967028 13552068683	2355560935@qq.com	China	12458	60
Tianjin heowns Biochemical Technology Co., Ltd.	400 638 7771	sales@heowns.com	China	14443	57
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51471	80
Alfa Chemistry	1-516-6625404	support@alfa-chemistry.com	United States	9171	60
Tianjin heowns Biochemical Technology Co., Ltd.	400-6387771-6038 18902104717	sales@heowns.com	China	20530	60

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