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good quality electroplated invar foil sheet
Invar is a low expansion nickel-iron (Fe-Ni) alloy.
Invar is a metal alloy used in applications in which a high degree of dimensional stability under changing temperatures is desired.
It is used in aperture mask, lead frame, PCB core, and precision mechanical systems in a lot of different industries.
Invar is available in thin foil (sheet) which is made by electroplating (electroforming, electrodeposition) process.
Invar 36
invar 36/UNS K96300(seamless tube) 4J36 strip invar 36 alloy
Invar 36,ASTM F1684,UNS K93600,Nilo 36,W.NR:1.3912 (FeNi36) Specification: Plate, sheet, strip, rod,bar
General Description
Invar 36, also known as FeNi36, is a nickel-iron, low-expansion alloy containing 36% nickel. It has a low coefficient of expansion from cryogenic temperatures to about 260℃. In the dry air at home temperature, invar 36 has good resistance to corrosion. But in moist air, it may go corrosion.
Invar 36 is suitable for the applications who require low coefficient of expansion, such as production, storage and transportation of liquid gas, temperature regulation devices working below 200℃, aperture mask, unit frameworks working below -200℃ and so on.

Chemical Composition
Grade | C% | Si% | P% | S% | Mn% | Ni% | Fe% |
Invar 36 | Max 0.05 | Max 0.30 | Max 0.020 | Max 0.020 | 0.20-0.60 | 35.0-37.0 | Bal. |
Specifications
Grade | UNS | Werkstoff Nr. |
Invar 36 | K93600 | 1.3912 |
Physical Properties
Grade | Density | Melting Point |
Invar 36 | 8.1 g/cm3 | 1430°C |
Coefficient Expansion
Alloy | Linear Coefficient of Thermal Expansion ,10-6/℃ | |||||
20-50℃ | 20-100℃ | 20-200℃ | 20-300℃ | 20-400℃ | 20-500℃ | |
Invar 36 | 0.6 | 0.8 | 2.0 | 5.1 | 8.0 | 10.0 |
Welding of Invar 36
Invar 36 is weldable using ERNiCr-3 which is available in bare wire for both the GTAW and GMAW process.
Size Range
Invar 36 Wire: 0.1mm-9mm
Invar 36 Bar: 11mm-200mm
Invar 36 Strip: 0.1mm-4.0mm*10mm-290mm
Sheets, Discs are also available per request

Applied field:
4J36 strip invar 36 alloy suits for need to apply ultra-low coefficient of heat expansion environment.
Typical applications are as follows:
1.Liquefied gas production, storage and transport
2.The measurement and control instruments work temperature lower than 200°C, such as temperature regulating device
3.Metals and other materials use the screw connector bush
4.Bimetal and bimetallic temperature controller
5.Film framework
6.Shadow mask
7.CRP components of the aviation industry temper Die
8.lower than -200°C the satellite and missile electronic control unit framework
9.The auxiliary tube of the electromagnetic lens in the laser control device



Payment
1)You may pay by PayPal /Western Union or T/T;
2)30% deposit and 70% balance for large order quantity.
Shipping
1). Delivered by DHL, EMS, UPS, FedEx, TNT or HK air mail .
2). 3-7 working days delivery after payment
3). Proper lower customs value is accepted to write on commercial invoice to avoid paying import tax for buyer.
4).Offer the tracking number to customers.
Q1.Can I have a sample order?
A: Yes, welcome to place sample orders to test and check our quality.
Q2.Do you have any MOQ limt?
A: Our product MOQ is 1 kg.
Q3.Information needed if I want a quotation?
A Name, Standard, Material Grade(Chemical Composition), Size Quantity, Weight.
Q4. Can we visit your company/factory before place the order?
A. Yes. Welcome anytime
Q5: How does your factory do regarding quality control?
A. Quality is priority. We always attach great importance to quality controlling from beginning to end.
Q6:. How to proceed the order if I have logo to print?
A: 1) Please send us the logo files, once receiving your payment(large order 30%), we will arrange to design the logo;
2)After received your confirmation of the logo, we will do sample and send it to you for checking;
3) If you confirm the sample is ok, we will produce the mass;
4) Once ready, please pay the rest payment and we will send out goods ASAP and tell you the tracking number;
How to contact us?
Send your inquiry details in the below for free sample, click "send" now.

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