Invar 42 Bar and Rod

Mourad Metals is a reliable manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality Invar 42 Bars and Rods designed for precision-critical industrial applications. The company adheres to strict international quality standards and employs advanced production techniques to guarantee consistent material performance and dimensional accuracy. Catering to sectors like electronics, aerospace, instrumentation, and precision engineering, Mourad Metals provides Invar 42 products customized to meet specific customer needs. With a strong focus on reliability, customization, and timely delivery, the company has built a solid reputation as a trusted provider of Invar 42 Bar and Rod solutions in both regional and global markets.

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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 primarily made of iron with about 42% nickel, which gives them a controlled coefficient of thermal expansion that closely aligns with many electronic and ceramic materials. This unique composition ensures excellent dimensional stability even with temperature changes. On the mechanical side, Invar 42 boasts moderate tensile strength, good ductility, and dependable toughness, making it ideal for machining and forming processes. The alloy retains stable mechanical properties under thermal stress, making it perfect for precision components and hermetic sealing applications.

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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

Invar 42 Bars and Rods find their place in applications that demand controlled thermal expansion and precise dimensional accuracy. Common uses include electronic lead frames, semiconductor packages, glass-to-metal sealing components, and precision instrumentation. They are also utilized in aerospace assemblies, optical devices, and measurement systems. Invar 42 is especially prized in the electronics and telecommunications sectors for its ability to maintain alignment and seal integrity during temperature fluctuations, ensuring long-term reliability and performance.

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