Invar 42 Bar and Rod

Starc Metals stands out as a top-notch manufacturer and supplier of Invar 42 Bars and Rods right in Canberra, Australia. They’re known for their high-quality nickel-iron alloy products, which are celebrated for having an incredibly low coefficient of thermal expansion and impressive dimensional stability. The company is dedicated to providing materials that adhere to strict international quality standards, ensuring that their products are reliable, durable, and perform precisely in critical applications. The Invar 42 Bars and Rods crafted by Starc Metals are designed for outstanding thermal stability, strength, and resistance to corrosion. With cutting-edge manufacturing techniques and customizable options, Starc Metals caters to industries like aerospace, precision engineering, electronics, and scientific instrumentation, delivering high-performance solutions that stand the test of time in demanding environments.

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Invar 42 Round Bars

Invar 42 Rectangular Bars

Invar 42 Square Rods

What is Invar 42 Bar and Rods?

These Invar 42 Bars and Rods are made up of about 42% nickel, with the rest being iron, plus a few trace elements that boost their mechanical and thermal properties. This alloy is known for its excellent dimensional stability, low thermal expansion, and solid tensile strength. It holds its structural integrity even when temperatures fluctuate and shows reliable mechanical performance in precision-critical settings. The blend of mechanical strength, thermal stability, and corrosion resistance makes Invar 42 Bars and Rods perfect for applications that need long-term dimensional accuracy and consistent performance, even with changing thermal 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

Invar 42 Bars and Rods find their place in various industries that demand precise dimensional stability and minimal thermal expansion. They’re often used in aerospace components, precision instruments, optical devices, and measurement systems where maintaining accuracy during temperature shifts is crucial. In the electronics and telecommunications sectors, they’re utilized in components that require thermal stability and minimal expansion. This alloy is also a great fit for scientific instrumentation, industrial gauges, and structural applications that call for high precision. With their unique combination of properties, these bars and rods are truly indispensable in many high-tech fields.

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