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John Fairbankstainless steel strip with good quality and the Sales clerk service is very good.i like this company i hope can work with your again
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Harish kumarأنا راضٍ جدًا عن هذه الصفقة ، ليس فقط لأنهم يشحنون بسرعة ، ولكن أيضًا جودة البضائع جيدة ، وأتطلع إلى التعاون التالي.
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RickyCooperate with a trial order. The service is excellent and the price is very good. Product quality is guaranteed and can stand inspection
Vacovit 500 Nilo51 Nickel Steel Strip 3.0mm
Place of Origin | CHINA |
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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 |

Contact me for free samples and coupons.
Whatsapp:0086 18588475571
Wechat: 0086 18588475571
Skype: sales10@aixton.com
If you have any concern, we provide 24-hour online help.
xMaterial Content | Ni29% Co 18% Fe53% | Thickness | 0.03-3.0mm |
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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 |
High Light | Nilo51 Nickel Steel Strip 3.0mm,Vacovit 500 Nickel Steel Strip 3.0mm,Vacovit 500 Nickel Alloy Strip |
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 | |
Size |
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Features |
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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 |
FAQ
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.