Description
Technical Data Sheet
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.
| 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 |
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
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