All about Invar 36 round bars

Mumbai, India, 2021-Sep-14 — /EPR Network/ — Neptune Alloys is one of the stalwart companies venturing into the production of Invar 36 Round Bars. Based in Mumbai, the company proudly holds a huge market share all over India. Products manufactured by the company are delivered to more than 60 cities or towns in India, and exported to more than 20 countries. Neptune Alloys manufactures premium quality round bars according to International ASTM, ANSI, API, DIN Standards in India. They ensure good product quality by examining material quality right from the stage of procuring raw materials. Exceptional product quality, good customer service and reasonable cost are the fundamental values of all their dealings. Neptune Alloys manufactures a wide spectrum of round bars with unparalleled finish, accurate dimensions and corrosion resistance. Neptune alloys is amongst the biggest round bar manufacturers and stockists.

Invar 36 Round Bar

Invar 36 round bars are manufactured using various materials and of different dimensions, depending upon the predetermined applications. With a nickel composition of 36%, Invar 36 is a low-expansion nickel-iron alloy. From cryogenic temperatures to roughly 500°F, it possesses a low coefficient of expansion and maintains nearly constant dimensions over a wide range of normal atmospheric temperatures. The alloy retains its strength and toughness at cryogenic temperatures. Invar 36 Round Bars produced by Neptune Alloys have better machinability, size precision, and straightness, as well as increased tensile and yield strength.

Electronic and radio equipment, laser and optical systems, aviation controls, and other applications where dimensional changes due to temperature variations should be minimized have employed Invar 36 Rods. Invar 36 Round Bars are used in Shipping, engineering, automobile industries, radio devices, laser and optical system, aircraft controls, etc


Specifications of Invar 36 Round Bars manufactured by Neptune Alloys

Standard: ASTM F1684 UNS K93603

Dimensions: EN, DIN, JIS, ASTM, BS, ASME, AISI

Diameter: 3mm~800mm

Size: Thickness: 2mm~100mm, Width: 10mm~500mm

Grades: Invar 36 (UNS No. K93603) Round Bars

Form: Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging, etc

Finish: Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish


Neptune Alloys also manufacture other types of Round Bars.

Hastelloy Round Bar

Stainless Steel Round Bar

Carbon Steel Round Bar

Titanium Round Bar

Duplex Steel Round Bar

Super Duplex Round Bar

Inconel Round Bar

Monel Round Bar

Waspalloys Round Bar

Zeron 100 Round Bar


For more details on Invar 36 Round Bars of any other products,

Contact us!

Phone: +919619664794

E-mail: Mail:


Address: Shop No G-17, Shreepati Jewels Building, Ground Floor, Opposite Morar Baug, Khattar Gali, Near C.P. Tank Circle , Mumbai – 400004.

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