Precision Nickel Alloy 42 4j42 42K Invar 42 Foil Strip Tape Lead Frame Expansion
Price:
Bargain
MOQ:
1KG
Delivery Time:
A WEEK
Brand:
HUONA
Product Description
Precision nickel alloy 42 4j42 42K invar 42 foil strip tape lead frame expansion Feni glass sealing
- UNS K94100, W.Nr. 1.3917
- ASTM F 29 (Wire)
- ASTM F 30 (Sheet, strip, rod, bar, tubing and wire)
- DIN 17745, AFNOR NF A54-301 (Composition)
Alloy 42 is a 41% nickel-iron controlled expansion alloy which has been used in a wide variety of glass-to-metal sealing applications.
While the expansion properties of this alloy most closely match 1075 glass, it has also been used in seals for the 0120 and 0010 glasses. It may also be used with hard glasses if a thin edged tubular seal is used. For seals that are not hydrogen annealed prior to sealing, a variation of this alloy containing small additions fo titanium, Glass Sealing 42 Gas-Free, has been used to promote gas-free sealing characteristics.
Applications
Alloy 42 has been used for the glass-to-metal seals in electronic tubes, automotive and industrial lamps, transformer and capacitor bushings and other glass-to-metal and ceramic-to-metal applications.
CHEMICAL COMPOSITION
| Element | Min | Max |
| Carbon | -- | 0.05 max |
| Nickel | -- | 41.0 |
| Iron | Balance | |
| Silicon | -- | 0.20 |
| Manganese | -- | 0.40 |
Thermal Expansion Properties
| Temperature Range | Total Expansion | Mean Linear Coefficient | ||
|---|---|---|---|---|
| °C | °F | 10-3 | 10-6/°C | 10-6/°F |
| 20-100 | 68-212 | 0.42 | 5.3 | 2.9 |
| 20-150 | 68-302 | 0.69 | 5.3 | 2.9 |
| 20-200 | 68-392 | 0.95 | 5.3 | 2.9 |
| 20-250 | 68-482 | 1.22 | 5.3 | 2.9 |
| 20-300 | 68-572 | 1.48 | 5.3 | 2.9 |
| 20-350 | 68-662 | 1.80 | 5.4 | 3.0 |
| 20-400 | 68-752 | 2.36 | 6.2 | 3.4 |
| 20-450 | 68-842 | 3.05 | 7.1 | 3.9 |
| 20-500 | 68-932 | 3.84 | 8.0 | 4.4 |
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Company
Huona (Shanghai) New Material Co., Ltd.
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Roy