Nickel Iron Alloy 42/ Nilo 42 (ASTM F30)
Technical Data Sheet
Alloy 42 (Nilo 42) is a nickel-iron controlled-expansion alloy containing 42% nickel. Alloy 42 (Nilo 42) has a low and normally constant coefficient of thermal expansion from room temperature to about 300ºC (570ºF). Alloy 42 (Nilo 42) is used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad-wire for sealing into glass envelopes of electric bulbs, radio valves, television tubes and fluorescent lights.
Chemical Composition Limits | |||||||||
Weight% | Ni | C | Mn | P | S | Si | Cr | Al | Fe |
Alloy 42 | 41 min | 0.05 max | 0.80 max | 0.025 max | 0.025 max | 0.030 max | 0.250 max | 0.10 max | Rem |
Typical Mechanical Properties
Material | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | ||
psi | MPa | psi | MPa | |||
Alloy 42 (Nilo 42) | Annealed | 71,000 | 490 | 36,000 | 250 | 43 |
Availability
Alloy 42 (Nilo 42) is available in Sheet, Bar, Plate and Wire. For all stock availability contact Sales.
Stock Sizes | Coil | Sheet | Foto Etching & Chemical Milling Quality | Coil Lead Frame or Deep Draw | Hot Rolled Plate |
0.005 x 16 | yes | yes | yes | yes | 0.250+ x WI x |
0.006 x 16 | yes | yes | yes | yes | |
0.0075 x 16 | yes | yes | yes | yes | |
0.008 x 16 | yes | yes | yes | yes | |
0.010 x 16 | yes | yes | yes | yes | |
0.015 x 16 | yes | yes | yes | yes | |
0.020 x 24 x 72 | yes | yes | yes | yes | |
0.030 x 24 x 72 | yes | yes | yes | yes | |
0.040 x 24 x 72 | yes | yes | yes | ||
0.061 x 24 x 72 | yes | yes | yes | ||
0.080 x 10 | yes | yes | |||
0.100 x 24 x 72 | yes | ||||
0.125 x 16 x 72 | yes |
Many other sizes and forms available Alloy 42 Bar, Alloy 42 Plate, Alloy 42 Sheet, Alloy 42 Strip, Alloy 42 Wire
Specifications
UNS: K94100
Werkstoff Nr. 1.3917
ASTM F29 Wire
ASTM F30 Sheet, Strip, Rod, Bar, Tubing, Wire
B753 Sheet and Strip
SEW 385 Sheet, Strip, Bar
DIN 17745
AFNOR NF A54-301
Tradename Nilo 42
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