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REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper

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Buy cheap REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy from wholesalers
  • Buy cheap REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy from wholesalers
  • Buy cheap REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy from wholesalers

REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy

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Brand Name:B&R
Model Number:BD028
Certification:CCPIT
Price:US$1.68-1.85
Supply Ability:500,000 pcs/month
MOQ:500-1,000pcs
Company Data
Verified Supplier
Contact Person Helen Ren
Business Type: 86-10-67163947
Business Type: Manufacturer Exporter Trading Company
Officials: ​ Rm 704, Building 2, No.3, Leading tower, Guangqumen Nei,Dongchen District, Beijing, China
Quality: Quality Certifitation Available
Product Details Company Profile
Product Details

Main information:

Product name:Brass decoration (Pigeon)

Model: BD028

Brand: B&R

Application: Decoration for Tombstone ,cemetery or others.

Origin: China

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


Product detail:

Size:10*10.5cm

Material: Brass (Copper alloy)

Color /finishing:electrophoretic paint

MOQ:500-1,000 pcs

Packing: Carton


Main feature:


Professionally engaged in funeral field over 10 years;

Customized products acceptable;

Good quality and competitive price;


More information:


Season cracking

Brass is susceptible to stress corrosion cracking, especially from ammonia or substances containing or releasing ammonia. The problem is sometimes known as season cracking after it was first discovered in brass cartridges used for rifle ammunition during the 1920s in the British Indian Army. The problem was caused by high residual stresses from cold forming of the cases during manufacture, together with chemical attack from traces of ammonia in the atmosphere. The cartridges were stored in stables and the ammonia concentration rose during the hot summer months, thus initiating brittle cracks. The problem was resolved by annealing the cases, and storing the cartridges elsewhere.


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.


BRASS ALLOYS


Atomic properties
Oxidation states−2, +1, +2, +3, +4 ​(a mildly basic oxide)
ElectronegativityPauling scale: 1.90
Ionization energies1st: 745.5 kJ/mol
2nd: 1957.9 kJ/mol
3rd: 3555 kJ/mol
(more)
Atomic radiusempirical: 128 pm
Covalent radius132±4 pm
Van der Waals radius140 pm

Early copper zinc alloys


In West Asia and the Eastern Mediterranean early copper zinc alloys are now known in small numbers from a number of third millennium BC sites in theAegean, Iraq, the United Arab Emirates, Kalmykia, Turkmenistan and Georgia and from 2nd Millennium BC sites in West India, Uzbekistan, Iran, Syria, Iraq and Palestine.[42] However, isolated examples of copper-zinc alloys are known in China from as early as the 5th Millennium BC.

The compositions of these early "brass" objects are highly variable and most have zinc contents of between 5% and 15% wt which is lower than in brass produced by cementation. These may be "natural alloys" manufactured by smelting zinc rich copper ores in redox conditions. Many have similar tin contents to contemporary bronze artefacts and it is possible that some copper-zinc alloys were accidental and perhaps not even distinguished from copper.However the large number of copper-zinc alloys now known suggests that at least some were deliberately manufactured and many have zinc contents of more than 12% wt which would have resulted in a distinctive golden color.

By the 8th–7th century BC Assyrian cuneiform tablets mention the exploitation of the "copper of the mountains" and this may refer to "natural" brass."Oreikhalkon" (mountain copper),the Ancient Greek translation of this term, was later adapted to the Latin aurichalcum meaning "golden copper" which became the standard term for brass. In the 4th century BC Plato knew orichalkos as rare and nearly as valuable as gold and Pliny describes howaurichalcum had come from Cypriot ore deposits which had been exhausted by the 1st century AD. X-ray fluorescence analysis of 39 orichalcum ingots recovered from a 2,600-year-old shipwreck off Sicily found them to be an alloy made with 75–80 percent copper, 15–20 percent zinc and small percentages of nickel, lead and iron.


More Picture:


REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy


Brass pigeon


REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy

Brass decoration---vase ring and pigeon


REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy


Brass bars


REF. BD028 Brass Pigeon Tombstone Decoration Size 10×10.5cm Material Copper Alloy

copper mines.

Company Profile

Sumer (Beijing) International Trading Co., Ltd.

Sumer (Beijing) International Trading Co., Ltd, is one of biggest manufacturer and exporter in funeral products in China. We are specialized in coffin handle, casket corner, swing bar, crucifix, cross, decoration and others’ funeral products. And we also supply the wooden coffin, metal casket, urns, body bag, coffin, casket, name plate, signing book, artificial flower and so on.

 

We have die-casting machine, injection molding machine, punching machine and vacuume metalization coating machine, and also have good partner for electronic plating. That raw material mainly included: zamak, aluminum alloy, ABS, PP, brass and steel.  As well, we have hundreds of mould and we also have ability to develop new mould according to customer’s design or samples. 


We have around 100 of work staffs, and there are 4 departments including: manufacture department, techinical department, market department, purchase department, and QC department. 

We have nearly ten years’ experience and goods were exported to France, Russia , Italy, Ireland, Portugal, Ecuador, South Africa and so on. To supply high quality and competitive price is our goal. Welcome worldwide customers to contact us.

 

 

 

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