Aluminium 7075 Forgings

Semih Metals stands out as a top-notch manufacturer and supplier located in Istanbul, Turkey, with a focus on high-performance metal alloys like Invar 42 Bar and Rod. With years of expertise in the metallurgical field, Semih Metals provides precision-engineered materials that meet the rigorous demands of industries such as aerospace, electronics, and cryogenics. The company prides itself on its commitment to quality, innovation, and customer satisfaction, offering both standard and custom specifications of Invar 42 products to clients around the globe. Thanks to cutting-edge manufacturing techniques and strict quality control measures, Semih Metals has built a solid reputation as a reliable source for high-quality Invar 42 solutions.

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Aluminium 7075 Rolled Forging

Aluminium 7075 Cold Forging

Aluminium 7075 Hot Forging

What is Aluminium 7075 Forgings?

Invar 42, or UNS K94100, is an iron-nickel alloy that contains about 41–43% nickel, with the remainder being iron, along with small amounts of carbon, manganese, and silicon. It’s well-known for its remarkably low coefficient of thermal expansion. On the mechanical side, Invar 42 boasts a tensile strength of roughly 450–700 MPa, a yield strength of about 275 MPa, and an elongation range of 30–45%, depending on its temper and treatment. This alloy maintains excellent dimensional stability over a broad temperature range, making it perfect for precision applications.

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Aluminium 7075 Forgings Specifications

Standards : ASTM B247, B247

Temper : H14

Specification : DIN, ASTM, BS and all International Standards

Flat bar blocks : up to 27″ width and 15,000 lbs.

Cylinders and sleeves : up to 50″ maximum O.D. and 65″ maximum length

Discs and hubs : up to 50″ diameter and 20,000 lbs.

Rolled, hand forged or mandrel forged rings : up to 84″ maximum O.D. and 40″ maximum length

Rounds, shafts and step shafts : up to 144″ maximum length and 20,000 lbs.

Aluminium 7075 Forgings Chemical Compositions

Weight %	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Each	Total
Minimum			1.20		2.10	0.18	5.10
Maximum	0.40	0.50	2.00	0.30	2.90	0.28	6.10	0.20	0.05	0.15

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Aluminium 7075 Forgings Mechanical Properties

Temper	Tensile					Hardness
	Ultimate		Yield		Elongation	Brinell
	KSI	MPA	KSI	MPA	%
T6, T651	83	572	73	503	11	150
T73, T7351	73	503	63	434	13	N/A

Aluminium 7075 Equivalent Grades

UNS	EN	DIN,WNr	JIS	AFNOR	ISO	BS	GOST
A97075	ENAW-AlZn5.5MgCu EN AW-7075	3.4365 AlZnMgCu1.5	7075	7075 A-Z5GU	AlZn6MgCu	7075 L95 L96	V95

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Aluminium 7075 Forgings Types

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Frequently Asked Questions (FAQ)

Can Aluminum 7075 be forged into shapes with tight tolerances?

Yes, Aluminum 7075 can be forged into shapes with tight tolerances. Its high strength allows for precise shaping, but careful control of temperature and pressure is required for optimal results.

What are the advantages of using Aluminum 7075 for custom forgings?

Aluminum 7075 offers high strength, excellent fatigue resistance, low weight, good machinability, and corrosion resistance, making it ideal for custom forgings in aerospace, military, and high-performance applications.

Can Aluminum 7075 be used for high-temperature forging applications?

Aluminum 7075 is not ideal for high-temperature forging applications due to its relatively low melting point and limited thermal stability. It is better suited for aerospace and structural applications at moderate temperatures.

Aluminium 7075 Forgings Uses

Invar 42 Bar and Rod find extensive use in industries where dimensional stability and minimal thermal expansion are essential. Typical applications include electronic components, telecommunications, aerospace instrumentation, precision measurement devices, and cryogenic engineering. The alloy’s stability across varying temperatures makes it ideal for lead frames, glass-to-metal seals, and shadow masks in CRTs. It’s also utilized in tooling for aerospace composite fabrication and high-precision instruments like gyroscopes and laser components. Invar 42 is particularly preferred in environments where thermal fluctuations could jeopardize structural integrity or precise alignments, ensuring long-lasting reliability and accuracy.

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