Invar 36 /Nilo 36 / Alloy 36 (ASTM F1684)


Technical Data Sheet

Chemical Composition Limits
Weight % 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

Alloy 36 (NILO 36, INVAR 36) is a Nickel-Iron, low expansion alloy which contains 36% Nickel. Invar 36 has a low coefficient of expansion from cryogenic temperatures to about +500°F (260°C). Invar 36 also retains good strength and toughness at cryogenic temperatures. Common applications include tooling for aerospace composites, standards of length, measuring devices, thermostat rods, laser components and tanks and piping for the storage and transportation of liquefied gases.

Typical 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

Availability
Alloy 36 (NILO 36, INVAR 36) is available in Bar, Round Bar, Tube, Rod, Strip, Plate, Sheet, Wire, Welding Wire TIG and MIG, Tooling Plate. For all stock availability contact Sales.

Invar 36 Tube is available the following size ranges.
Outside Diameter - 0.25mm (0.010") up to 16.00mm (0.625")
Wall - 0.05mm (0.002") up to 1.00mm (0.040")
Straight Lengths - 1.00mm (0.040") up to 5000.00mm (197")
Coils Lengths - 5 Metres to 15 Metres
Standard Tolerance- OD &ID +/-0.03mm (0.0012")
Wall +/- 10%
Tight Tolerance - OD&ID +/- 0.015mm (0.0006")
Wall +/-3%
Some thin wall tubes up to 25.40 mm (1.000") can be supplied.

We are experts in difficult to obtain sizes contact Sales for many other sizes and forms

Invar 36 Stock - Alloy 36
Invar 36 Round Bar Invar 36 Plate
6.35 mm dia 6 mm THK
12.00 mm dia 10 mm THK
16.00 mm dia 13 mm THK
20.00 mm dia 19 mm THK
22.22 mm dia 25 mm THK
25.00 mm dia 30 mm THK
30.00 mm dia 40 mm THK
35.00 mm dia 50 mm THK
40.00 mm dia  
45.00 mm dia  
50.00 mm dia  

Hot Rolled Plate Invar 36
Th   Width   Length
0.187" X 72" X 96"
0.250" X 72" X 96"
0.375" X 72" X 96"
0.500" X 72" X 96"
0.625" X 70" X 72"
0.750" X 16" X 100"
1.00" X 16" X 56"
1.50" X 16" X 46"
2.00" X 20" X 60"
2.50" X 8.25" X 51"
4.00" X 7.125" X 18.5"
4.625" X 5" X 51"
5.00" X 12.7" X 15.5"

Cold Rolled Sheet - Invar 36
Thickness   Width   Length
0.015 x 10.5 x 72
0.030 x 24 x 72
0.041 x 24 x 72
0.060 x 24 x 60
0.060 x 24 x 120
0.100 x 24 x 72
0.125 x 24 x 60
0.125 x 24 x 120

Invar Rod - Invar 36
Dia   Length
0.078 x 36
0.093 x 36
0.100 x 72
0.125 x 120
0.250 x 72
0.500 x 144
0.750 x 144
1.0 x 144
1.125 x 144
2.0    
3.0    
4.0    


Invar Welding Wire - Invar 36
0.45 x MIG Spools 25lb
0.096 x 36 TIG pkg'd in 10lb tubes
0.078 x 36 TIG
0.093 x 36 TIG

We are experts in difficult to obtain sizes contact Sales for many other sizes and forms.
Invar 36 Registered trademark of Carpenter Technology Inc.

Specifications
UNS K93600, K93601
Werkstoff Nr. 1.3912
ASTM B 388, ASTM B 753, DIN 1715 (Sheet and Strip)
ASTM F-1684
MIL-S-16598 and MIL-I-23011 CL 7
Trademarks - NILO 36 and INVAR 36
FeNi36

Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.