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High Precision Brass Foil
Chemical Composition (%)
Alloy No. | Chemical Composition(%, Max.) | ||||||||
Cu | Fe | Pb | Al | Mn | Sn | Ni | Zn | Impirity | |
H90 | 88.0-91.0 | 0.10 | 0.03 | — | — | — | 0.5 | Rem | 0.3 |
H85 | 84.0-86.0 | 0.10 | 0.03 | — | — | — | 0.5 | Rem | 0.3 |
H70 | 68.5-71.5 | 0.10 | 0.03 | — | — | — | 0.5 | Rem | 0.3 |
H68 | 67.0-70.0 | 0.10 | 0.03 | — | — | — | 0.5 | Rem | 0.3 |
H65 | 63.5-68.0 | 0.10 | 0.03 | — | — | — | 0.5 | Rem | 0.3 |
Alloy Table
China | ISO | ASTM | JIS |
H90 | CuZn10 | C22000 | C22000 |
H85 | CuZn15 | C23000 | C23000 |
H70 | CuZn30 | C26000 | C26000 |
H68 | — | — | — |
H65 | CuZn35 | C27000 | C27000 |
Physical Properties
Density:8.5g/cm3
Electric conductivity(20 °C): 27%IACS
Thermal conductivity (20 °C): 120W/(m°C )
Elastic modulus: 105000N/mm2
Thermal expansion coefficient (20-300 °C ) 20 X 10 -6 °C-1
Specifications Available
Unit | Thickness | Width | Temper |
mm | 0.006~0.1 | 1.0~650 | O ,1/4H, 1/2H, H |
inch | 0.0002~0.004 | 0.04~25.6 |
|
Sizes and Tolerances (mm)
Thickness | Thickness Tolerance | Width | Width Tolerance |
0.006~0.04 | ± 0.001 | 1.0~650 | ± 0.1 |
> 0.04~0.10 | ± 0.002 |
Mechanical Properties
Temper | JIS Temper | Tensile Strength Rm/N/mm2 | Elogantion A50% | Hardness HV |
M | O | 350~410 | ≥ 30 | 70~100 |
Y4 | 1/4H | 380~445 | ≥ 20 | 105~145 |
Y2 | 1/2H | 390~480 | ≥ 15 | 120~`165 |
Y | H | 460~510 | ≥10 | 135~185 |
Note: We can provide products with other properties according to customers` requirements.
Application:
High precision radiator foil is main material in manufacturing automobile, farmer machine, mining machinery, engineering machinery, diesel locomotive, shipbuilding, generatorset.
Carried Standard(Latest)
Nations | Standard No. | Standard Name |
China | GB/T2059--2000 | CHINA’S NATIONAL STANDARD |
Japan | JIS H3100 :2000 | COPPER AND COPPER ALLOY SHEETS,PLATES AND STRIPS |
U.S.A | ASTM B36/B 36M -01 | STANDARD SPECIFICATION FOR BRASS,PLATE,SHEET,STRIP AND ROLLED BAR |
Germany | DIN-EN 1652:1997 | COPPER AND COPPER ALLOYS PLATE,SHEET,STRIP AND CIRCLES FOR GENERAL PURPOSES |
DIN-EN 1758 :1997 | COPPER AND COPPER ALLOYS STRIP FOR LEADFRAMES | |
SEMI | SEMI G4-0302 | SPECIFICATION FOR INTERGRATED CIRCUIT LEADFRAME MATERIALS USED IN THE PRODUCTION OF STAMPED LEADFRAMES |
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