Invar 36 Nilo Alloy 36 W.Nr 1.3912 UNS K93600 ASTM F1684
Common Trade Names: Nickel Alloy 36, Invar 36®, Nilo 6®, Pernifer 6®
Invar 36® is a nickel-iron, low expansion alloy that contains 36% nickel, Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C).
Invar 36 Tube OD:0.2-6mm, WT: 0.02-2mm
Invar 36 , Nickel Alloy 36
Nilo Alloy 36
W.Nr 1.3912
UNS K93600
ASTM F1684-06
Invar 36 Tube:
OD:0.2-6mm
WT: 0.02-2mm
There are three general types of controlled expansion alloys:
Low thermal expansion – these are predominantly iron-nickel alloys having very low expansion coefficients within certain temperature ranges. They are used generally in electronic devices, instrumentation and thermostats.
Matching expansion – these alloys possess approximately the same expansion coefficients as the glasses and ceramics commonly used in the electronics industry.
High thermal expansion – these are alloys which exhibit high expansion coefficients…higher, for example, than those for stainless steels and carbon steels. They are used primarily in thermostat applications.
Invar® is a ferrous nickel-iron alloy that contains 36%-41% nickel and exhibits excellent controlled expansion qualities. Invar 36® is effective in extreme temperatures ranging from -150°C (-238°F) all the way up to 260°C (500°F), while Invar 42®—or SuperInvar® — maintains nearly constant dimensions in temperatures ranging from -32°C (-25.6F) to 275°C (527°F). Invar® is used primarily for controlled expansion and magnetic applications. This nickel iron alloy is tough, versatile and retains good strength at normal atmospheric and cryogenic temperatures.
Invar 36® is a nickel-iron, low expansion alloy, Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C). As a Controlled Expansion Alloy, Invar 36 is widly used in the Aircraft controls, Optical & laser systems, Radio & electronic devices,Composite forming tools & Cryogenic components ect.
Chemical Composition
| Material | Ni | Fe | C | Mn | P | S | Si | Cr | Mo | Co |
| Invar 36 | 35-38 | Rem | 0.10 max | 0.06 max | 0.025 max | 0.025 max | 0.35 max | 0.50 max | 0.50 max | 1.0 max |
Mechanical Properties
| Material | Condition | Ultimate Tensile Strength | Yield Strength 0.2 % | Elongation (%) | ||
| psi | MPa | psi | MPa | |||
| Invar 36 | Annealed | 71,000 | 490 | 35,000 | 240 | 42 |
