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Ref Number BD007 Brass Decoration Material Copper Alloy Tombstone Accessory Lampholder

Categories Tombstone Decoration
Brand Name: B&R
Model Number: BD007
Certification: CCPIT
Place of Origin: China
MOQ: 500-1000 pcs
Price: US$4.15-4.35
Supply Ability: 500,000 pcs/month
Packaging Details: carton
Color: Bronze
Size: L:10cm
Material: Brass
Origin: China
MOQ: 500-1000pcs
Shape: lampholder
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    Ref Number BD007 Brass Decoration Material Copper Alloy Tombstone Accessory Lampholder

    Main information:

    Product name:Brass decoration

    Model: BD007

    Brand: B&R

    Application: Tombstone ,cemetery or others.

    Origin: China

    Manufacturer: Sumer International (Beijing) Trading Co.,Ltd


    Product detail:

    Size:L 10 cm

    Material: Brass (Copper alloy)

    Color /finishing: Antique Bronze

    MOQ:500-1000 pcs

    Packing: Carton


    Main feature:


    Professionally engaged in funeral field over 10 years;

    Customized products acceptable;

    Good quality and competitive price;


    More Information:

    Zamak

    Brass

    Brass is a metal alloy made of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties. It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.


    By comparison, bronze is principally an alloy of copper and tin. However, bronze and brass may also include small proportions of a range of other elements including arsenic, phosphorus, aluminium, manganese, and silicon. The term is also applied to a variety of brasses, and the distinction is largely historical. Modern practice in museums and archaeology increasingly avoids both terms for historical objects in favour of the all-embracing "copper alloy".


    Brass is used for decoration for its bright gold-like appearance; for applications where low friction is required such as locks, gears, bearings, doorknobs, ammunition casings and valves; for plumbing and electrical applications; and extensively in brass musical instruments such as horns and bells where a combination of high workability (historically with hand tools) and durability is desired. It is also used in zippers. Brass is often used in situations in which it is important that sparks not be struck, such as in fittings and tools used near flammable or explosive materials.


    Lead content


    To enhance the machinability of brass, lead is often added in concentrations of around 2%. Since lead has a lower melting point than the other constituents of the brass, it tends to migrate towards the grain boundaries in the form of globules as it cools from casting. The pattern the globules form on the surface of the brass increases the available lead surface area which in turn affects the degree of leaching. In addition, cutting operations can smear the lead globules over the surface. These effects can lead to significant lead leaching from brasses of comparatively low lead content.


    Colours of Brass


    Brasses have a range of attractive colours,red, yellow, gold, brown, bronze, silver. Brass with 1% manganese will weather to a chocolate brown colour. Nickel silvers will polish to a brilliant silver colour. Brasses are easy to shape and, with all these colours available, it is not surprising that architects and designers have used brasses to enhance the appearance of new and refurbished buildings, both inside and out.


    Brass and Hygiene


    Copper and brass are playing a leading role in the fight against hospital-acquired infections such as MRSA and Clostridium difficile. It has been shown that these pathogens, which can be spread by touch, will die in a few hours on copper/brass surfaces. This does not happen on stainless steel or plastic.


    Main isotopes of copper
    IsotopeAbundanceHalf-lifeDecay modeProduct
    63Cu69.15%is stable with 34 neutrons
    64Cusyn12.70 hε64Ni
    β−64Zn
    65Cu30.85%is stable with 36 neutrons
    67Cusyn61.83 hβ67Zn

    Physical properties copper
    Phasesolid
    Melting point1357.77 K ​(1084.62 °C, ​1984.32 °F)
    Boiling point2835 K ​(2562 °C, ​4643 °F)
    Density near r.t.8.96 g/cm3
    when liquid, at m.p.8.02 g/cm3
    Heat of fusion13.26 kJ/mol
    Heat of vaporization300.4 kJ/mol
    Molar heat capacity24.440 J/(mol·K)

    Copper in the periodic table



    Cu

    Ag
    nickelcopperzinc



    History


    Although forms of brass have been in use since prehistory, its true nature as a copper-zinc alloy was not understood until the post medieval period because the zinc vapor which reacted with copper to make brass was not recognised as a metal.The King James Bible makes many references to "brass".The Shakespearean English form of the word 'brass' can mean any bronze alloy, or copper, rather than the strict modern definition of brass.[citation needed] The earliest brasses may have been natural alloys made by smelting zinc-rich copper ores.By the Roman period brass was being deliberately produced from metallic copper and zinc minerals using the cementation process, and variations on this method continued until the mid-19th century.It was eventually replaced by speltering, the direct alloying of copper and zinc metal which was introduced to Europe in the 16th century.


    More Picture:



    BD007 brass decoration lamp holder

    A copper disc (99.95% pure) made by continuous casting; etched to reveal crystallites.

    Copper mining

    Copper mine



    Raw material of brass decoration

    Copper ore

    Product Tags:

    Casket Cross

      

    Ornamental Coffins Screws

      
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