Shandong JinNai International Trade Co., Ltd.
Shandong JinNai International Trade Co., Ltd.
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Solid 99.99% Mirror Polished Copper Ball Brass Balls 13mm 14mm 14.28mm 15mm 15.875mm
Nearly pure copper balls, they show good mechanical and corrosion resistance properties, excellent thermal
and electric conductivity.
Small amounts of alloying elements as Cr, Zr, Ag, Cd, Mg, Sn allow to improve the mechanical properties.
Application: Copper balls are used in galvanic applications and in the field of electronic industry.
| ITA | USA | GER | FRA | UK | RUS | CHN | JAP |
|---|---|---|---|---|---|---|---|
| P-CuZn30 | C26000 | 2.0265 | CuZn30 | CZ106 | L70 | H70 | C2600 |
| P-CuZn35 | C27000 | 2.0335 | CuZn36 | CZ107 | L63 | H65 | C2700 |
| P-CuZn40 | C28000 | 2.0360 | CuZn40 | CZ109 | L60 | H62 | C2800 |
| Property | Symbol | U.o.M. | Type | Notes | Values |
|---|---|---|---|---|---|
| Density | δ | [g/cm3] | Physical | Room temp. | 8.49 |
| Young's modulus | E | [GPa] | Mechanical | - | 110 |
| Specific heat | c | [J/kg-K] | Thermal | Room temp. | 375 |
| Coefficient of linear thermal expansion | α | 10^-6/ºC] | Thermal | (ΔT=0-100°C) | 20.4 |
| Thermal conductivity | λ | [W/(m·K)] | Thermal | Room temp. | 118.0 |
| Electric resistivity | ρ | [Ω*m*10^-9] | Electric | - | 63 |
| Relative magnetic permeability | µ | - | Magnetic | Paramagnetic | 1.05 |
| Property | Type | U.o.M. | Values | U.o.M. | Values |
|---|---|---|---|---|---|
| Hardness | Mechanical | [HRB] | 75 - 95 | - | - |
| Ultimate tensile strength | Mechanical | [MPa] | 500 - 600 | [psix10^3] | 72 - 87 |
| Service temperature | Thermal | [ºC] | -196 / 500 | [ºF] | -320.8 / 932 |
| Corrosion Resistance |
|---|
| Good corrosion resistance in drinking-water, brackish water, sea-water (except at high flow rate), salt atmospheres, petroleum products, alcohols. Fairish resistance with respect to acids and alkali. It does not resist in contact with hydroxides, cyanides, oxidizing acids. As a general rule, corrosion resistance decreases as zinc content increases. |
Copper Balls Type
Packing of Brass Balls
A. Steel Drum packing
1) 250kg per steel drum;
2) Four steel drums in one pallet;
3) Drum with pallet size: 75CM*75CM*65CM.
B. Plywood Box packing
1) 40 cartons/woven bag in one plywood box;
2) Plywood box size:80CM*65CM*80CM.
C. Recommended to use 20"FT container, Maximum loading capacity of 24 tons.
D. 20"FT container loading of 24 tons Total: 24 Plywood Box or Drum.
* Own ourselves facotry (Machine-intensive)
~~ Competitive quotation with strictly quality. ~~ Regular size ball are inventory.
* Documents offered
~~ Inspection Report & Material Certification & SGS certification
~~They can prove "Correct size and shiny surface and standard hardness"
* 0 cost SAMPLES can be sent on request.
~~Trial order comes after test Samples sent in advance.
~~Trial order keeps same with samples after test.
* Good quality balls offered can be in dry pack or oil pack.
~~Dry pack with rust protective paper in steel drums or paper box or poly bags.
~~Oil pack in steel drums or paper box or poly bags.
* All orders complete in time and shipped out on time.
~~All information of B/L and PACK-LIST and INVOICE confirmed with every client before shipment.
~~Certificate of Origin can be offered, let us know it in advance.
* Gurantee
~~ Not good balls, refund or return is acceptable.
~~Strictly quality and good service, make sure longer-term cooperation.
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