Ni36 Strip

INVAR36

UNS K93600, UNS K93601, W.Nr.1.3912, alloy36, Fe-Ni36

Alloy 36 is a special low-expansion iron-nickel alloy with an ultra-low coefficient of expansion. Among them, the control of carbon and manganese components is very important. Cold deformation can reduce the thermal expansion coefficient, and heat treatment in a specific temperature range can stabilize the thermal expansion coefficient.

It has an extremely low coefficient of thermal expansion between -250°C and +200°C. Has good plasticity and toughness.

 

Similar Grades

United States: UNS K93600, UNS K93601

France: Fe-Ni36

Germany: W.Nr.1.3912

 

Executive Standard

ASME A658

ASME B388

ASME B753

 

Typical values(Weight %)

Ni	Fe	C	Si	Mn	P	S
35.0-37.0	Remain	≤0.05	≤0.30	≤0.60	≤0.02	≤0.02

 

Mechanical Properties (Annealed State)

Temperature ℃	Yield Strength R p0.2/MPa	Tensile Strength R m/ MPa	Elongation δ5 /%
-250	880	1000	40
0	310	520	40
300	95	410	50
600	95	210	70

 

Corrosion Resistance

Corrosion resistant in dry air at room temperature.

In other harsh environments, such as humid air, corrosion (rusting) may occur.

 

Application Field

● Production, storage and transportation of liquefied gas

● Measuring and control instruments whose operating temperature is below +200°C, such as thermostats

● Bushings for screw connectors between metal and other materials

● Bimetallic and temperature controlled bimetallic

● Tempering molds for CRP parts in the aviation industry

● Frames for electronic control units of satellites and missiles below -200°C

● Auxiliary electron tube in the electromagnetic lens of the laser control device

 

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