Active Member
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[China]
Address: Rm 704, Building 2, No.3, Leading tower, Guangqumen Nei,Dongchen District, Beijing, China
Contact name:Helen Ren
Sumer (Beijing) International Trading Co., Ltd. |
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Main information:
Product name:ZAMAK COFFIN HANDLE
Model: H017
Brand: B&R
Application: European style coffin
Origin: China
Manufacturer: Sumer International (Beijing) Trading Co.,Ltd
Product detail:
Size: 22.5*11.5 cm
Material: Zamak (Zinc alloy)
Color: Gold, Silver or Bronze (Optional)
Attached on coffin by screw
MOQ:1000 pcs
Main feature:
Professionally engaged in funeral field over 10 years;
Customized products acceptable;
Good quality and competitive price;
More Information:
History of Zinc
Centuries before zinc was discovered in the metallic form, its ores
were used for making brass and zinc compounds for medicinal
purposes. Zinc compounds were in the ores smelted certainly as
early as 200 B.C. to obtain copper and which gave alloys of copper
and zinc – the brass family. The Romans certainly were major users
of brass. The Greeks also appeared to know zinc, even if not by
name.
An ancient idol, containing 87.5% zinc, found in prehistoric ruins
in Transylvania in Eastern Europe is the oldest known zinc object.
Zinc filled silver bracelets dating back to 500 B.C. have been
found on the island of Rhodes, and the Romans used a zinc alloy to
fabricate coins.
Some credit India with developing the first knowledge of true zinc
smelting while others attribute its discovery to the Chinese. The
production of metallic zinc occurred much later than other common
metals. Copper was smelted from its ores around 5000 B.C., lead
about 4000 B.C. and iron about 2000 B.C., while zinc appears to
have become available on a commercial scale in the 14th century
A.D.
Zamak
Zamak 4
Zamak 4 was developed for the Asian markets to reduce the effects of die soldering while maintaining the ductility of zamak 3. This was achieved by using half the amount of copper from the zamak 5 composition.
Zamak 4 composition per standard
| Alloying elements | Impurities | |||||||||||
| Standard | Limit | Al | Cu | Mg | Pb | Cd | Sn | Fe | Ni | Si | In | Tl |
| Ningbo Jinyi Alloy Material Co. | min | 3.9 | 0.3 | 0.03 | - | - | - | - | - | - | - | - |
| max | 4.3 | 0.5 | 0.06 | 0.003 | 0.002 | 0.002 | 0.075 | - | - | - | - | |
| Genesis Alloys Ltd. | min | 3.9 | 0.3 | 0.04 | - | - | - | - | - | - | - | - |
| max | 4.2 | 0.4 | 0.05 | 0.003 | 0.002 | 0.001 | 0.02 | 0.001 | 0.02 | 0.0005 | 0.001 | |
Zamak 4 properties
| Property | Metric value | Imperial value |
| Mechanical properties | ||
| Ultimate tensile strength | 317 MPa | 46,000 psi |
| Yield strength (0.2% offset) | 221—269 MPa | 32,000—39,000 psi |
| Impact strength | 61 J (7 J aged) | 45 ft-lbf (5 ft-lbf aged) |
| Elongation | 7% | |
| Shear strength | 214—262 MPa | 31,000—38,000 psi |
| Compressive yield strength | 414—600 MPa | 60,000—87,000 psi |
| Fatigue strength (rotary bending 5x108 cycles) | 48—57 MPa | 7,000—8,300 psi |
| Hardness | 91 Brinell | |
| Physical properties | ||
| Solidification range (melting range) | 380—386 °C | 716—727 °F |
| Density | 6.6 g/cm3 | 0.24 lb/in3 |
| Coefficient of thermal expansion | 27.4 μm/m-°C | 15.2 μin/in-°F |
| Thermal conductivity | 108.9—113.0 W/m-K @ 100 °C | 755.6—784.0 BTU-in/hr-ft2-°F @ 212 °F |
| Electrical conductivity | 26-27% IACS | |
| Specific heat capacity | 418.7 J/kg-°C | 0.100 BTU/lb-°F |
More Picture:
Gold and bronze color H017 coffin handle
back look of H017 coffin handle
More zamak handles and hardware
