Nickel-Iron Controlled Expansion Alloy Kovar Invar Welding Wire TIG Rod 2.4mm 3.2mm

• Customization: Available
• Application: Aviation, Electronics, Industrial, Medical, Chemical, Making Hermetic Seals
• Standard: JIS, GB, DIN, BS, ASTM, AISI
• Model NO.: invar kovar
• Purity: 41%
• Alloy: Alloy
• Type: Nickel Strip
• Powder: Not Powder
• Density: 8.12g/Cm
• Curie Temperature: 435c
• Melting Point: 1450c
• Size: 0.1~2mm/6~250mm
• Transport Package: Wooden Case
• Specification: Customized
• Trademark: DLX
• Origin: Jiangsu, China
• HS Code: 7506100000
• Production Capacity: 1500tons/Year

Product Description

 

Product Description

Nickel-iron controlled expansion alloy kovar invar welding wire tig rod 2.4mm 3.2mm

• UNS K94100, W.Nr. 1.3917
• ASTM F 29 (Wire)
• ASTM F 30 (Sheet, strip, rod, bar, tubing and wire)
• DIN 17745, AFNOR NF A54-301 (Composition)

Alloy 42 is a 41% nickel-iron controlled expansion alloy which has been used in a wide variety of glass-to-metal sealing applications.
While the expansion properties of this alloy most closely match 1075 glass, it has also been used in seals for the 0120 and 0010 glasses. It may also be used with hard glasses if a thin edged tubular seal is used. For seals that are not hydrogen annealed prior to sealing, a variation of this alloy containing small additions fo titanium, Glass Sealing 42 Gas-Free, has been used to promote gas-free sealing characteristics.

Applications

Alloy 42 has been used for the glass-to-metal seals in electronic tubes, automotive and industrial lamps, transformer and capacitor bushings and other glass-to-metal and ceramic-to-metal applications.
 
CHEMICAL COMPOSITION

Element	Min	Max
Carbon	--	0.05 max
Nickel	--	41.0
Iron	Balance
Silicon	--	0.20
Manganese	--	0.40

 

Thermal Expansion Properties

Temperature Range	Total Expansion	Mean Linear Coefficient
°C	°F	10^-3	10^-6/°C	10^-6/°F
20-100	68-212	0.42	5.3	2.9
20-150	68-302	0.69	5.3	2.9
20-200	68-392	0.95	5.3	2.9
20-250	68-482	1.22	5.3	2.9
20-300	68-572	1.48	5.3	2.9
20-350	68-662	1.80	5.4	3.0
20-400	68-752	2.36	6.2	3.4
20-450	68-842	3.05	7.1	3.9
20-500	68-932	3.84	8.0	4.4

Product Parameters

Soft magnetic alloys are a class of alloys with high permeability and low coercivity in weak magnetic fields. According to the different elements that make up the alloy, it can be divided into electromagnetic pure iron (industrial pure iron), iron-silicon alloy, iron-nickel alloy, iron-aluminum alloy, iron-silicon-aluminum alloy and iron-cobalt alloy, etc.1J06,1J12,1J17,1J18,1J22,1J30,1J36,1J38,1J46,1J50,1J51,1J54,1J76,1J77,1J79,1J80,1J85,1J87

Permanent magnet alloy not only has high hardness and mechanical properties, but also has strong anti-demagnetization ability, high coercivity value (greater than 20kA/m), magnetic "hard" and other characteristics, so it is also called hard magnetic alloy.2J04,2J07,2J09,2J10,2J31,2J53,2J84,2J85Elastic alloys include high elastic alloys and constant elastic alloys. It is used to make elastic elements such as elastic sensitive elements, energy storage elements and frequency elements in precision instruments.3J01,3J21,3J53Expansion alloys(Invar Alloy) are divided into Kovar alloys, ceramic sealing alloys, low expansion alloys, and constant expansion alloys. Widely used in electronic industry, precision measuring tools, precision instruments and low temperature engineering and other fields.4J28,4J29,4J32,4J33,4J36,4J40,4J42,4J50

 

Company Profile

Our company Principle is  " Quality first, Customer first".

CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got Iso9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.

Our Advantages

 

 

What is your working time?

Monday-Friday : 8:30AM-17:00PM (Beijing time, GMT+08.00)

We have public holiday during May.1-3, Oct.1-7 and Chinese New Year holiday . Pls e-mail us during our holiday if u have any questions.

 

Do you provide free samples?

Yes, we can provide a free sample for testing,buyer should bear the shipping costs.

 

What is your payment terms?

T/T,L/C,D/A,D/P,Western Union,MoneyGram,Paypal

 

What is the lead time?

Usually sample lead time is 15 days after payment has been confirmed.