Alloy 42

Alloy 42 is an iron-nickel alloy containing 42% nickel. It exhibits low thermal expansion characteristics over a range of temperatures, which makes it particularly suitable for use in glass and ceramic seals. It finds application in a variety of electronic components and lead frames.

Related Specifications of Alloy 42

• K94100
• ASTM F30
• 1.3917
• NF A54-301
• FeNi42

Nominal Composition of Alloy 42

Fe 58%, Ni 41%, Mn 0.8%

Mechanical Properties of Alloy 42

Ultimate Tensile Strength (N/mm²)	Proof Stress (N/mm²)	Elongation (%)	Hardness (HB)
500	300	30	140HV

Key Features of Alloy 42

• Low coefficient of thermal expansion matched to silicon, ceramic materials such as alumina and beryllia and vitreous glass compounds
• Low thermal expansion characteristics over a range of temperatures

Applications of Alloy 42

General | Semiconductor packages, electronic tubes, CRT electron guns and automotive and industrial lamps

Anita Steel & Metals- a leading supplier of Alloy 42

With decades of experience and a huge range of stock, Anita Steel & Metals is an industry leader in the supply of Alloy 42 and other high quality specialist engineering alloys.

To buy or learn more about Alloy 42 contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

CONTROLLED EXPANSION ALLOYS
	Related Specifications		Mechanical Properties
Alloy Name	UNS	Others	Ultimate Tensile Strength N/mm²	Minimum Yield Strength N/mm²	Elongation %	Hardness HB
Al­lo­y 36 (I­nv­ar­®)	K9­36­00­; K9­36­01­; K9­36­03	AS­TM B7­53­; 1.­39­12	48­0	31­0	30	14­0H­V
Al­lo­y 42	K9­41­00	AS­TM F3­0	50­0	30­0	30	14­0H­V
Al­lo­y 52 (N­il­o®­)	N1­40­52	AS­TM F3­0	55­0	28­0	35	80
Al­lo­y K (K­ov­ar­®)	K9­46­10	AS­TM F1­5	54­0	38­0	30	16­0H­V

Alloy 36 (Invar®)

Alloy 36 (Invar®*) is a 36% nickel-iron alloy that exhibits a near zero rate of thermal expansion - approximately one tenth that of carbon steel - at temperatures from around -100°C up to 200°C.

Alloy 36 (Invar®*) offers a high retention of strength and toughness at cryogenic temperatures, making it suitable for a variety of low temperature or low expansion applications. The alloy is ideally suited to areas where dimensional changes due to temperature must be minimal, such as tooling for aerospace composites, radio and electronic devices and structural members in precision equipment such as lasers, measuring devices, thermostats and cryogenic instrumentation.

Related Specifications of Alloy 36 (Invar®*)

• K93600
• K93601
• K93603
• ASTM B753
• ASTM F1684
• SEW 385
• 1.3912
• NF A54-301
• FeNi36

Nominal Composition of Alloy 36 (Invar®*)

• Fe 63.0%, Ni 36.0%, Mn 0.6%, Si 0.4%

Mechanical Properties of Alloy 36 (Invar®*)

Ultimate Tensile Strength (N/mm²)	Proof Stress (N/mm²)	Elongation (%)	Hardness (HB)
480	310	30	140HV

Key Features of Alloy 36 (Invar®*)

• Near zero coefficient of linear thermal expansion
• High strength and toughness at cryogenic temperatures

Applications of Alloy 36 (Invar®*)

General | Positioning devices, bimetal thermostats, advanced composite moulds for aerospace industry, optical devices, echo boxes and filters for mobile telephones, magnetic shielding, small electrical transformers, metrology devices, scientific instruments, electrical circuit breakers, temperature regulators, clock balance wheels, pendulum clocks, precision condenser blades, radar and microwave cavity resonators, special electronic housings, seals, spacers, and specialized frames, high voltage transmission lines

Anita Steel & Metals - a leading supplier of Alloy 36 (Invar®*)

With decades of experience and a huge range of stock, Anita Steel& Metals is an industry leader in the supply of Alloy 36 (Invar®*) and other high quality specialist engineering alloys.

To buy or learn more about Alloy 36 (Invar®*) contact us now, or fill in the enquiry form on the right hand side and we will be in touch shortly.

*Invar® is a registered trademark of Arcelor Mittal

CONTROLLED EXPANSION ALLOYS
	Related Specifications			Mechanical Properties
Alloy Name	UNS	BS EN	Others	Ultimate Tensile Strength N/mm²	Minimum Yield Strength N/mm²	Elongation %	Hardness HB
Al­lo­y 36 (I­nv­ar­®)	K9­36­00­; K9­36­01­; K9­36­03		AS­TM B7­53­; 1.­39­12	48­0	31­0	30	14­0H­V
Al­lo­y 42	K9­41­00		AS­TM F3­0	50­0	30­0	30	14­0H­V
Al­lo­y 52 (N­il­o®­)	N1­40­52		AS­TM F3­0	55­0	28­0	35	80
Al­lo­y K (K­ov­ar­®)	K9­46­10		AS­TM F1­5	54­0	38­0	30	16­0H­V