• Wuxi ShiLong Steel Co.,Ltd.
    John Fairbank
    stainless steel strip with good quality and the Sales clerk service is very good.i like this company i hope can work with your again
  • Wuxi ShiLong Steel Co.,Ltd.
    Harish kumar
    أنا راضٍ جدًا عن هذه الصفقة ، ليس فقط لأنهم يشحنون بسرعة ، ولكن أيضًا جودة البضائع جيدة ، وأتطلع إلى التعاون التالي.
  • Wuxi ShiLong Steel Co.,Ltd.
    Cooperate with a trial order. The service is excellent and the price is very good. Product quality is guaranteed and can stand inspection
  • Wuxi ShiLong Steel Co.,Ltd.
    Fierce Urchin
    good ,the galvanized steel coil quality is good and i donot see the broken on them.that is nice
  • Wuxi ShiLong Steel Co.,Ltd.
    Shipment speed is very fast, and the requirements can meet me. Salesman is very responsible.
  • Wuxi ShiLong Steel Co.,Ltd.
    600 tons 316L stainless steel plates, delivery fast. JO worked very hard for me in the packaging design. I appreciate it very much .
  • Wuxi ShiLong Steel Co.,Ltd.
    Pedro Ngeru Maina
    The conversation was very pleasant and professional. All problems can be solved. However, the price still falls short of the desired target. I hope we can have the opportunity to cooperate next time
  • Wuxi ShiLong Steel Co.,Ltd.
    Andrew Greg - Turkey
    this is the second order l buy this company ,quality is very good ,same as europure quality .we will go on ccooperate with this company .
  • Wuxi ShiLong Steel Co.,Ltd.
    Mechile Kilar Chard - Brazi
    200 ton Stainless steel sheet is arrived on 10th Oct 2014 , the quality is very good.,deliver time is very fast It's very lucky we find this factory
  • Wuxi ShiLong Steel Co.,Ltd.
    Pongpol Pluemsati-Thailand
    Quality is very good and delivery time very fast ,we want to do long terms business with this company
Contact Person : Ava
Phone Number : 0086 18706170710
Whatsapp : +8618706170710

Vacovit 500 Nilo51 Nickel Steel Strip 3.0mm

Place of Origin CHINA
Brand Name OEM/ODM
Certification ISO
Model Number NiFe
Minimum Order Quantity 5 ton
Price negotiable based on the quantity
Packaging Details Standard seaport packing or as custom request
Delivery Time 10-30 days
Payment Terms T/T, Western Union, L/C
Supply Ability 6000 tons per month

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Whatsapp:0086 18588475571

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If you have any concern, we provide 24-hour online help.

Product Details
Material Content Ni29% Co 18% Fe53% Thickness 0.03-3.0mm
Width 10mm-250mm Ni (Min) 49.5%
Resistance (μΩ.m) 0.44ohm.mm2/M Resistivity 0.44ohmmm2/M
Condition Bright,soft Application As Glass Sealing Material, Sealing Glass
Common Name 50H, N50, Vacovit 500, FeNi50, Nilo51, Ns-1 HS Code 7226999001
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Nilo51 Nickel Steel Strip 3.0mm


Vacovit 500 Nickel Steel Strip 3.0mm


Vacovit 500 Nickel Alloy Strip

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Product Description





0.03-3.0mm Alloy 4j50 Vacovit 500 Nilo51 Ns-1 As Glass Sealing Material


Alloy 4j50, Vacovit 500, Nilo51, Ns-1

4J50 the other common Name: 50H, N50, Vacovit 500, FeNi50, Nilo51, Ns-1
4J50 is mainly composed of iron, nickel elements. It is characterized with a fixed coefficient of expansion


Grade      4J42,4J45,4J50,4J52,4J54


      Bar:20-100mm(Hot forging)
            2.0-20mm(Cold drawing)

     It has a certain linear expansion coefficient in a certain temperature rang.
Application      Used as soft glass or ceraimc sealing material in the electric vacuum industry.




Normal composition%

Grade C P S Mn Si Al Ni Co Fe
4J42 ≤0.05 ≤0.02 ≤0.02 ≤0.8 ≤0.3 ≤0.1 41.5-42.5 ≤1.0 Bal.
4J45 ≤0.05 ≤0.02 ≤0.02 ≤0.8 ≤0.3 ≤0.1 44.5-45.5 / Bal.
4J50 ≤0.05 ≤0.02 ≤0.02 ≤0.8 ≤0.3 ≤0.1 49.5-50.5 / Bal.
4J52 ≤0.05 ≤0.02 ≤0.02 ≤0.6 ≤0.3 / 51.5-52.5 / Bal.
4J54 ≤0.05 ≤0.02 ≤0.02 ≤0.6 ≤0.3 / 53.5-54.5



4J50 Typical Physical properties

Density (g/cm3) 8.21
Electrical resistivity at 20ºC(ohm.mm2/m) 0.44
Thermal conductivity, λ/ W/(m*ºC) 16.7
Curie point Tc/ ºC 500
Elastic Modulus, E/ Gpa 158



4J50 Coefficient of expansion

θ/ºC α1/10-6ºC-1 θ/ºC α1/10-6ºC-1
20~100 9.8 20~400 9.4
20~200 9.8 20~450 9.4
20~300 9.5 20~500 9.7
20~350 9.4 20~600 10.6



The heat treatment process

Annealing Heated to 900 ±20ºC in a hydrogen atmosphere
Holding time, h 1 hour
cooling With speed not more than 5 ºC / min. cooling to below 200 ºC



1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If the size is not in stoct, our MOQ will be about 30kgs.

2. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.


3.What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.


4.Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.


5.What's our working time?
We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.


Vacovit 500 Nilo51 Nickel Steel Strip 3.0mm 0