Invar 42 Bar and Rod

Neith Metals, based in Cairo, Egypt, stands out as a top manufacturer and supplier of high-quality Invar 42 Bars and Rods. These products are celebrated for their incredibly low coefficient of thermal expansion and impressive dimensional stability. The company is dedicated to delivering premium nickel-iron alloy products that adhere to international standards, ensuring they perform reliably in precision and temperature-sensitive applications. Thanks to cutting-edge manufacturing technology and rigorous quality control, Neith Metals consistently produces Invar 42 Bars and Rods that boast uniform dimensions, outstanding mechanical properties, and long-lasting reliability. These products find their way into various industries, including aerospace, electronics, instrumentation, and precision engineering, where minimizing thermal deformation is crucial.

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Invar 42 Round Bars

Invar 42 Rectangular Bars

Invar 42 Square Rods

What is Invar 42 Bar and Rods?

Invar 42 Bars and Rods are made up of about 42% nickel and 58% iron, along with trace elements that boost stability and mechanical performance. They showcase remarkable mechanical properties, such as tensile strength ranging from 500 to 700 MPa, good ductility, and high yield strength. Invar 42 is known for its exceptional dimensional stability across a wide temperature range, thanks to its extremely low thermal expansion, making it perfect for applications that demand precise tolerances and minimal thermal deformation under changing conditions.

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Invar 42 Bar and Rod Specification

Standards :	ASTM F30, ASME SF30
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 42 Bar

Grade	C	Mn	Si	S	Fe	Ni	Cr	P	Mo	Cu	Mo
Invar 42	0.1 max	0.6 max	0.35 max	0.025 max	Balance	35.0 – 37.0	0.5 max	0.025 max	0.5 max	0.5 max	0.5 max

Invar 42 Bar and Rod Mechanical Properties

Yield Strength (0.2%Offset)	Tensile Strength	Elongation	Hardness
Ksi – 36 , MPa – 248	Ksi – 71 , MPa – 490	40 %	40

Equivalent Grades of Invar 42 Bar

STANDARD	WERKSTOFF NR.	UNS
Invar 42	1.3917	K94100

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Invar 42 Bar and Rod Types

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Frequently Asked Questions (FAQ)

Can laser welding be used for Invar 42 Bar?

Yes, laser welding can be used for Invar 42 bars. Its low thermal expansion properties make it suitable for precision welding, though attention is needed to manage heat input and distortion.

Can Invar 42 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 42 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.

Invar 42 Bar and Rod Uses

These Invar 42 Bars and Rods are widely utilized in scenarios where thermal stability and precision are paramount. They’re often found in aerospace components, satellite structures, and aircraft instrumentation, where maintaining dimensional accuracy during temperature shifts is essential. In the electronics sector, they’re used in precision measuring devices, clock components, and temperature-sensitive assemblies. The optics and scientific fields also rely on Invar 42 for telescope mounts, precision instruments, and laboratory equipment. Moreover, high-precision engineering applications, such as molds, jigs, and tooling, depend on Invar 42 Bars and Rods to guarantee minimal thermal expansion, structural reliability, and long-term performance.

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