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LIAN CHANG CASTING INC.

LIAN CHANG CASTING INC.

ZINC
ZINC

Detail Specifications / Descriptions

LIAN CHANG provides all kinds of die casting parts, we are specialized in brass alloy, aluminum alloy and zinc alloy…etc. We can also provide customized design and manufacturing, please contact us if you need professional die casting.

The zinc alloy materials are Zamak3, ZA8, ZA12 and ZA27.



International Standard Compositions of Zinc Die-casting Alloys

Designation No.2(%) No.3(%) No.4(%) No.5(%) No.7(%) ZA-8(%) ZA-12(%) ZA-27(%)
Aluminum (Al) 3.9-4.3 3.9-4.3 3.9-4.32 3.9-4.3 3.9-4.3 8.2-8.8 10.8-11.5 25.5-28.0
Magnesium (Mg) 0.025-0.05 0.025-0.05 0.025-0.05 0.03-0.06 0.010-0.02 0.020-0.030 0.020-0.030 0.012-0.020
Copper (Cu) 2.6-2.9 0.10max 0.3-0.4max 0.75-1.25 0.10max 0.8-1.3 0.5-1.2 2.0-2.5
Lead (Pb) 0.004max 0.004max 0.004max 0.004max 0.002max 0.005max 0.005max 0.005max
Cadmium (Cd) 0.003max 0.003max 0.003max 0.003max 0.002max 0.005max 0.005max 0.005max
Tin (Sn) 0.002max 0.002max 0.002max 0.002max 0.001max 0.002max 0.002max 0.002max
Iron (Fe) 0.075max 0.075max 0.075max 0.075max 0.075max 0.065max 0.065max 0.072max
Nickel (Ni) - - - - 0.005-0.020 - - -
Zinc (Zn) Balance Balance Balance Balance Balance Balance Balance Balance



Physical Properties of Zinc Alloys

Designation No.2(%) No.3(%) No.4(%) No.5(%) No.7(%) ZA-8(%) ZA-12(%) ZA-27(%)
Density(g/cm) 6.6 6.6 6.6 6.6 6.6 6.3 6.0 5.0
Melting Range(C) 379-390 381-387 380-386 380-386 381-387 375-404 377-432 376-484
Electrical Conductivity(%IACS) 25 27 26-27 26 27 27.7 28.3 29.7
Thermal Conductivity(100c,W/m.k) 104.7 113 180.9-113.0 108.9 11.3 114.7 116.1 125.5
Coefficient of Thermal Expansionh(20-100c,um/mm/c) 27.8 27.4 27.4 27.4 27.4 23.3 24.2 26.0
Specific Heat(J/kg.k) 418.7 418.7 418.7 418.7 418.7 435.4 448.0 534.4
Die Shrinkage(mm/mm) 0.006 0.006 0.007 0.006 0.006 0.007 0.0075 0.008



Mechanical Properties of Zinc Alloys

Designation No.2(%) No.3(%) No.4(%) No.5(%) No.7(%) ZA-8(%) ZA-12(%) ZA-27(%)
Meehanical Properties Die Cast Die Cast Die Cast Die Cast Die Cast Die Cast Sand Cast Die Cast Sand Cast Die Cast Sand Cast
Ultimate Tensile Strength(Mpa) 359 283 317 331 283 372 248-276 400 276-317 421 400-440
Impact Strength(J) 47 58 61 65 58 42 20 28 25 - 47
Elongation(%) 7 10 7 7 13 6-10 1-2 4-7 1-3 1-3 3-6
Hardness(HB) 100 82 92 91 80 95-110 80-90 95-115 90-105 105-125 110-120
Shear Strength(MPa) 317 214 214-262 262 262 275 - 275 - 296 255
Yield Strength(0.2%,MPa) - - 221-269 - - 290 200 317 207 365 365
Fatigue Strength Rotary Bend(5x10 cycle,MPa) 58.6 47.6 48-57 56.5 - - - - 103.5 - 172.5
Compressive Strength(0.1%m,MPa) 641 414 414-600 600 600 252 199 252 199 269 227
Applications

Lock parts
Furniture parts
Hardware parts
Lighting fixtures
Electronic parts
Bicycle / motorcycle / car spare parts

OEM parts and components according to customers' specifications



Cast to finish

CNC machining; 
drilling / tapping / broaching / reaming / sanding / polishing / buffing / blast cleaning / vibrating / thermo-debarring / assembly / packaging / outside chemical finishing and painting

Related Products
Company: LIAN CHANG CASTING INC.
Address: No.1, Shi 3rd Rd., Yangmei City, Taoyuan County, Taiwan 326
Telephone: 886-3-496-3377
Fax: 886-3-496-2288
E-Mail:
URL: www.brass.com.tw
www.cens.com/lianchang

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