Invar® / Super Invar® Bar

Eagle Alloys Corporation (EAC) is a leading global supplier of nickel iron low expansion alloys including Alloy 36 (Invar® and Invar 36®) bar. Please contact our courteous sales team to assist you with your Alloy 36 bar needs. Please view or print our Alloy 36 stock list for our complete stock sizes and capabilities.  A wide variety of Alloy 36 bar sizes are available from stock with immediate shipping and custom sizes can be furnished quickly by forging, hot rolling, or cold finishing.

Cold Finished Bars – .250″ to 1.00″ Diameter
Hot Forged Bar – 3/4″ and Up
Forged Blocks – Up to 200 lbs. and 36″ Long Max
Hot Rolled Flats – 15″ Wide Max and 0.125″ Minimum Thickness

Alloy 36 is typically supplied to meet the requirements of AMS/MIL-I-23011 Class 7, AMS/MIL-S-16598, ASTM-B-753, ASTM-F-1684 UNS K 93603 or UNS K-93050 (FM or FC), Boeing Specification D-33078, ASTM-A-658.  Other specifications upon request.

Our Alloy 36 bar are in conformance with Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and are DFARS Compliant.  Eagle Alloys Corporation is an ISO Certified Corporation and have been supply the highest quality Alloy 36 bar for over 35 years.

Alloy 36 is made up of 64% iron and 36% nickel and is known for its excellent properties of controlled coefficient of thermal expansion. Alloy 36 typical applications include glass sealing, clocks, laboratory devices, creep gauges, shadow-mask frames, valves, optoelectronic devices, optical and laser benches, electronics, scientific instruments, hot water heaters, filters for microwave instruments, and precision parts for optical mounting in lenses.

Eagle Alloys also supplies additional low expansion and controlled expansion alloys Kovar, Alloy 42, Alloy 46 Alloy, 47/50, 48, 49, and Alloy 52. EAC can supply soft magnetic Alloy 50, Hiperco 50 & 50A, and Vim Var Core Iron.

Invar Trademark – Imphy Alloys, France
Invar 36 Trademark – Carpenter Technology Corp., Reading PA