Invar 42 Bar and Rod

Aung Metals stands out as a leading manufacturer and supplier of Invar 42 Bars and Rods, proudly based in Naypyidaw, Myanmar. They specialize in providing top-notch nickel-iron alloy solutions tailored for precision engineering needs. The company is dedicated to utilizing advanced manufacturing techniques, maintaining strict quality control, and following international standards to ensure their materials are not only reliable but also perform exceptionally well. Invar 42 Bars and Rods are particularly celebrated for their incredibly low coefficient of thermal expansion, impressive dimensional stability, and solid mechanical strength, making them perfect for applications sensitive to temperature changes. With a strong focus on timely deliveries, competitive pricing, and outstanding customer service, Aung Metals caters to the aerospace, electronics, and precision engineering sectors with their premium Invar 42 offerings.

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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 up of nickel (around 42%) and iron, which gives them that remarkable low coefficient of thermal expansion and excellent dimensional stability. These bars boast good tensile strength, moderate hardness, and dependable mechanical performance across various temperatures. Invar 42 holds its structural integrity even under thermal cycling and shows minimal expansion when faced with temperature fluctuations. Its unique makeup guarantees precise performance in applications that demand tight tolerances, stability, and resistance to thermal deformation, making it a go-to choice for critical engineering and industrial tasks.

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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

Industries that need materials with minimal thermal expansion and high dimensional stability widely use Invar 42 Bars and Rods. They find common applications in aerospace and aviation for precision instruments, structural components, and optical assemblies. In the electronics field, Invar 42 is utilized for semiconductor fixtures, circuit components, and precision measuring devices. This alloy is also ideal for scientific instruments, optical benches, and temperature-sensitive mechanical parts. Thanks to its exceptional thermal stability and adequate mechanical strength, Invar 42 Bars are a reliable choice for various demanding applications.

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