Invar 36 Bar and Rod

Sahil Metals, located in Riyadh, Saudi Arabia, stands out as a premier supplier and manufacturer of specialty alloys tailored for high-precision and low-expansion applications. One of its standout products is **Invar 36 Bar and Rod**, an iron-nickel alloy celebrated for its remarkably low coefficient of thermal expansion. This distinctive feature makes Invar 36 perfect for environments where maintaining dimensional stability is crucial. Sahil Metals ensures that this alloy meets international standards, catering to customers throughout Saudi Arabia and the GCC.

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Invar 36 Round Bars

Invar 36 Rectangular Bars

Invar 36 Square Rods

What is Invar 36 Bar and Rods?

**Invar 36 Bars and Rods** generally consist of 36% nickel and 64% iron, providing a near-zero thermal expansion rate between –100°C and 260°C. The alloy is known for its good toughness, ductility, and workability, with tensile strengths typically ranging from 480 to 620 MPa. It excels in maintaining excellent dimensional stability even with temperature changes and demonstrates solid resistance to fatigue and moderate corrosion. Machining and welding can be done using standard techniques suitable for nickel-iron alloys.

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Invar 36 Bar and Rod Specification

Standards :	ASTM F1684, ASME SF1684
Dimensions :	EN, DIN, JIS, ASTM, BS, ASME, AISI
Wire :	Thickness starting from 0.05mm
Round bar size :	Diameter: 3-~800mm
Hex Bar size :	2-100mm A/F
Flat bar size :	Thickness: 2 -100mm / Width: 10 to 500mm
Square bar size :	4 to 100mm
Rectangular Bars Size :	33 x 30mm to 295 x 1066mm
Hollow Bar :	32mm OD x 16mm ID to 250mm OD x 200mm ID
Tolerance :	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Finish :	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish

Chemical Compositions of Invar 36 Bar

Grade	C	Mn	Si	S	Fe	Ni	Cr	P	Mo	Co
Invar 36	0.10 max	0.06 max	0.35 max	0.025 max	Rem	35-38	0.50 max	0.025 max	0.50 max	1.0 max

Invar 36 Bar and Rod Mechanical Properties

Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Psi – 71,000 , MPa – 490	Psi – 35,000 , MPa – 240	42 %

Equivalent Grades of Invar 36 Bar

STANDARD	WERKSTOFF NR.	UNS
Invar 36	1.3912	K93600

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Invar 36 Bar and Rod Types

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Frequently Asked Questions (FAQ)

Can Invar 36 Bar and Rod Be Welded?

Yes, Invar 36 bar and rod can be welded, but it requires special care due to its low expansion properties. Proper welding techniques, such as TIG or MIG, are recommended.

Are there specific welding consumables for Invar 36 Bar and Rod ?

Yes, specific welding consumables for Invar 36 bar and rod include Invar 36 electrodes, TIG rods, and MIG wires. These materials ensure proper fusion and minimize thermal expansion issues during welding.

Are Invar 36 Rod Susceptible To Galvanic Corrosion?

Invar 36 rod, primarily composed of iron and nickel, is not highly susceptible to galvanic corrosion. However, when exposed to more noble metals in corrosive environments, it can experience some galvanic effects.

Invar 36 Bar and Rod Uses

**Invar 36 Bar and Rod** finds extensive use in applications that demand precision and thermal consistency, such as aerospace tooling, cryogenic systems, scientific instruments, measuring devices, optical supports, and electronics. It’s also vital in the production of molds and dies where tight tolerances must be upheld across varying temperatures. With its outstanding stability and reliability, Invar 36 continues to be the go-to material for engineers in precision-focused industries.

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