Invar® Plate | (Invar “36”® Alloy, NILO® 36, Pernifer® 36)

Invar plate controlled expansion alloyEFINEA’s inventory of iron-nickel alloys for low expansion applications contains a wide selection of Invar® for your next project.  Our Invar inventory contains an array of high-quality, standard grade Invar plate in thicknesses that start at 0.250 inches.  Refer to the table below for our range of standard grade Invar plate thicknesses available from our stock. At EFINEA all our special purpose metals and alloys, including Invar plate, ships with certified mill test reports.


We stock Invar Alloy in standard grade forms of plate and sheet. This controlled expansion alloy is generally the material of choice due to its optimum low expansion properties. It has a slightly lower coefficient of thermal expansion than Free-Cut Invar® “36”.  The standard grade of Invar Alloy plate conforms to ASTM F1684,  AMS I 23011 (chemistry only), UNS  K93603.


At EFINEA our in-house capabilities provide cost-effective, custom precision cutting solutions for our customers who prefer their Invar plate semi-processed.


Contact EFINEA at 800-348-6268 and speak to our material experts.  They will provide you with complete details on our capabilities, which includes shearing, saw cutting and our state-of-the-art FLOW water jet cutting services.

Below please find a sampling of our standard stock items. Our inventory fluctuates based on market demands. If you do not see the size or form you require, we ask that you call us for current product availability.
MaterialFormSize InchesSKU Number
InvarPlate 0.375”INV-PL-375
InvarPlate 0.500”INV-PL-500

To download a copy of the EFINEA Invar data sheet, or any of our other Controlled Expansion Alloy data sheets, please go to the Data Sheets section in our Technical Library.