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SGS Approved 10mm hollow mirror polished brass balls of China Supplier

SGS Approved 10mm hollow mirror polished brass balls of China Supplier

SGS Approved 10mm hollow mirror polished brass balls of China Supplier

SGS Approved 10mm hollow mirror polished brass balls of China Supplier

 

FAQ

 

What is your lead time?

 

-- Our general lead time is 10-15 days but may extend during peak periods.

 

 

Is a deposit required?

 

--It depends on the price of the purchase. If it is over 10,000 o, then a deposit of 50% of the total sum is required in advance, and the rest could be paid before the products are finished. 

 

 

If I re-size your designs, is there a price change? 

 

--In most cases, varying the design will result in minimal variations in price. Customising would mean the cost of creating a new template, changes in laser cutting time, and re-formatting our machines usually contributes to a re-size fee.

 

 

Product Description

 

Copper is the perfect conduit for heat and electricity, though balls or spheres made of copper are not recommended to the occasions or situations where they are exposed to corrosive liquids or appliances under high stress. These balls or spheres are , however, soft and sensitive to corrosion from various materials. 

Copper balls or spheres of Foshan Dongyuan Company range from 6mm to 300mm, with 0.8mm in thickness. The most sought-for coppers fall under the category of accessories of clothings, footwear and jewelry. They are also of excellent quality and superb craftmanship. Welding is employed in the copper balls without a noticeable seam and could also be applied in many ways. And we believe they could also be employed for many fruitful uses. 

Our copper balls come with no holes but could be customer-orientated, that is to say, we could add a hole or holes to your balls as you want. Drilling with small holes is free of charge and please rest assured that everything of the copper balls will come out as perfect as possible.

 

Copper is a reddish coloured metal which is malleable and ductile. It has excellent thermal and electrical conductivities and good corrosion resistance. It is found in sulphide ores and as carbonate, arsenide and chloride (abundance in the Earth's crust is 50 ppm). Extraction of the metal involves roasting the ore to produce the oxide, followed by reduction and purification by electrolysis. The element is inert to non-oxidising acids but reacts with oxidising agents. In air, it will weather to produce the characteristic green patina of the carbonate. Copper will combine with oxygen on heating to produce CuO at red heat, and Cu2O at elevated temperatures.

Pure copper has an electrical conductivity second only to that of silver and hence its main application is in the electrical industry. Copper is also the basis of many important alloys (e.g. brass, bronze and aluminium bronze) and has been traditionally considered to be one of the coinage metals, along with silver and gold, but being more common, is the least valued. It is one of the first metals ever to have been worked by man and is thought to have been mined for more than 5000 years.

 

 

 

Class

Copper (%)

Zinc (%)

Notes

Alpha brasses

>65

<35

Alpha brasses are malleable, can be worked cold, and are used in pressing, forging, or similar applications. They contain only one phase, with face-centered cubic crystal structure.

Alpha-beta brasses

55–65

35–45

Also called duplex brasses. Suited for hot working. It contains both α and β' phase; the β'-phase is body-centered cubic and is harder and stronger than α. Alpha-beta brasses are usually worked hot.

Beta brasses

50–55

45–50

Can only be worked hot, and are harder, stronger, and suitable for casting.

White brass

<50

>50

Too brittle for general use. The term may also refer to certain types of nickel silver alloys as well as Cu-Zn-Sn alloys with high proportions (typically 40%+) of tin and/or zinc, as well as predominantly zinc casting alloys with copper additive.

 

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Fabrication Properties
Joining TechniqueSuitability
SolderingExcellent
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingGood
Coated Metal Arc WeldingNot Recommended
Spot WeldFair
Seam WeldNot Recommended
Butt WeldGood
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedFair
Machinability Rating30

 

ASTM B134-52 Alloy 7 brass

 

hemical Analysis:
Copper............................................68.5% to 78.5%
Lead.................................................0.07% maximum
Iron...................................................0.05% maximum
Zinc..................................................Balance

 

Mechanical Properties
Hardness as measured on parallel flat surfaces is Rockwell “B” 75 to 85.
Tensile Strength............................80,000 psi
Yield Strength................................57,000 psi
Elongation in two inches.............20%
Reduction in area.........................85%
Modulus of elasticity....................15,000,000 psi
Density...........................................0.306 lbs./cu. in.

 

Brass balls provide excellent resistance to corrosion by water. Brass has the ability to resist the corrosive effects of fuel oil, gasoline, butane, dry carbon dioxide, benzene, lime-sulphur mixture and similar chemical agents.

 

 

 

 

 

 

 

Packaging & Shipping

 Corrugated carton, opp bag and foam

 

 

 

Authenticity

Certificate

 

 

 

Shoes made of this material would be excellent. They will be able to pair with any trousers or jeans in a closet. The offered stainless steel product is designed and manufactured by using high grade quality raw materials and sophisticated techniques in accordance with set industrial standards. This product is going to allow companies to mass-produce products at outstanding speeds and with great repeatability and quality. The offered stainless steel product is designed and manufactured by using high grade quality raw materials and sophisticated techniques in accordance with set industrial standards.
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