2013/01/08

Invar 36

Invar 36 | UNS K93600 | Alloy 36 | Nilo 36 | NiWire Industries Co., Ltd. <!-- All in One SEO Pack 1.6.15.3 by Michael Torbert of Semper Fi Web Design[276,323]


Invar 36

General Description
Invar 36, also known as FeNi36, is iron-nickel alloys have low coefficients of expansion over only a rather narrow range of temperature. It has a low coefficient of expansion from cryogenic temperatures to about 260℃. In the dry air at home temperature, invar 36 has good resistance to corrosion. But in moist air, it may go corrosion.
Invar 36 is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200℃, aperture mask, unit frameworks working below -200℃ and so on.
Chemical Composition
Grade C% Si% P% S% Mn% Ni% Fe%
Invar 36 Max 0.05 Max 0.30 Max 0.020 Max 0.020 0.20-0.60 35.0-37.0 Bal.
Specifications
Grade UNS Werkstoff Nr. Strip/Sheet
Invar 36 K93600 1.3912 ASTM B388/B753
Physical Properties
Grade Density Melting Point
Invar 36 8.1 g/cm3 1430°C
Coefficient of Expansion
Alloy Linear Coefficient of Thermal Expansion ā,10-6/℃
20-50℃ 20-100℃ 20-200℃ 20-300℃ 20-400℃ 20-500℃
Invar 36 0.6 0.8 2.0 5.1 8.0 10.0
Size Range
Invar 36 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.
Email our sales for quotation!

Kovar

General Description
Kovar is a nominal 29%Ni-17%Co-54%Fe alloy that is a well-known glass-sealing alloy suitable for sealing to hard glasses. Kovar has a nominal expansion coefficient of approximately 5 ppm/°C and inflection temperature of ~450 °C (840 °F).
Kovar (ASTM F15) has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. This alloy has found wide application in power tubes, microwave tubes, transistors, and diodes. In integrated circuits, it has been used for the flat pack and the dual-in-line package.
Chemical Composition
Grade C% P% S% Mn% Si% Cu% Cr% Mo% Ni% Co% Fe%
Kovar Max 0.03 Max 0.020 Max 0.020 Max 0.50 Max 0.30 Max 0.20 Max 0.20 Max 0.20 28.5-29.5 16.8-17.8 Bal.
Specifications
Grade UNS Werkstoff Nr. ASTM
Kovar K94610 1.3981 F15
Physical Properties
Grade Density Melting Point
Kovar 8.17 g/cm3 1449°C
Mechanical Properties
Grade Tensile Strength N/mm²
Soft 1/4 Hard 1/2 Hard 3/4 Hard Full Hard
Kovar Strip <570 520-630 590-700 600-770 >700
Kovar Wire <585 585-725 655-795 725-860 >860
Coefficient of Expansion
Alloy Linear Coefficient of Thermal Expansion ā,10-6/℃
20-200℃ 20-300℃ 20-400℃ 20-450℃ 20-500℃ 20-600℃ 20-700℃ 20-800℃
Kovar 5.9 5.3 5.1 5.3 6.2 7.8 9.2 10.2
Size Range
Kovar Wire: ¢0.1mm-¢9mm
Kovar Bar: ¢11mm-¢200mm
Kovar Strip: 75-110mm*0.15-22mm
Email our sales for quotation!

Alloy 42

General Description
Alloy 42 is a low expansion alloy which is very similar to Invar 36. It has a low expansion up to about 300℃. Principally used as strip for semiconductor lead frames in integrated circuits and bi-metal strip, the alloy can be also used in ceramic to metal seals with alumina and the glass bulb envelope to metal seals.
Chemical Composition
Grade C% P% S% Mn% Si% Al% Co% Ni% Fe%
Alloy 42 Max 0.05 Max 0.020 Max 0.020 Max 0.80 Max 0.30 Max 0.10 Max 1.0 41.0-42.5 Bal.
Specifications
Grade UNS Werkstoff Nr. Wire/Strip/Sheet/Bar
Alloy 42 K94100 1.3917 ASTM F30
Physical Properties
Grade Density Melting Point Electric Resistivity
Alloy 42 8.12 g/cm3 1440°C 0.61μΩ·m
Mechanical Properties
Grade Tensile Strength N/mm²
Soft Hard
Alloy 42 Strip <590 >700
Coefficient of Expansion
Grade Linear Coefficient of Thermal Expansion ā,10-6/℃
20-100℃ 20-200℃ 20-300℃ 20-400℃ 20-450℃ 20-500℃ 20-600℃
Alloy 42 5.6 4.9 4.8 5.9 6.9 7.8 9.2
Size Range
Alloy 42 Wire: ¢0.1mm-¢9mm
Alloy 42 Bar: ¢11mm-¢200mm
Alloy 42 Strip: 75-110mm*0.15-22mm
Email our sales for quotation!

No comments:

Post a Comment