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Iron Nickel Base Nilo50 Low Expansion Alloys 4J50 For Electric Vacuum Industry
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Brand Name:OHMALLOY
Model Number:4J50
Certification:ISO9001-2008
Price:negotiable
Payment Terms:L/C, T/T, , MoneyGram
Supply Ability:50 Tons per month
Delivery Time:7-10 days
Company Data
Verified Supplier
Contact Person
Qiu
Business Type:
Manufacturer Distributor/Wholesaler Exporter Trading Company
Officials:
Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Quality:
Quality Certifitation Available
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Product Details
Company Profile
Product Details
OhmAlloy-4J50 (Expansion alloy)
(Common Name: 50H, N50, Vacovit 500, FeNi50)
4J50 alloy is mainly composed of iron, nickel elements. It is characterized with a fixed coefficient of expansion. Increase the thermal expansion coefficient and the Curie point with increase of nickel content.
4J50 alloy is widely used the structure of the sealing material in the electric vacuum industry.
Normal composition%
| Ni | 49.5~50.5 | Fe | Bal. | Co | 1.0 | Si | ≤0.3 |
| Mo | - | Cu | - | Cr | - | Mn | ≤0.8 |
| C | ≤0.05 | P | ≤0.02 | S | ≤0.02 | Al | ≤0.1 |
Typical Physical properties
| Density (g/cm3) | 8.21 |
| Electrical resistivity at 20℃(Ωmm2/m) | 0.44 |
| Thermal conductivity, λ/ W/(m*℃) | 16.7 |
| Curie point Tc/ ℃ | 500 |
| Elastic Modulus, E/ Gpa | 158 |
Coefficient of expansion
| θ/℃ | α1/10-6℃-1 | θ/℃ | α1/10-6℃-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 |
Typical Mechanical properties
| Tensile Strength | Elongation |
| Mpa | % |
| 490 | 35 |
| The heat treatment process | |
| Annealing | Heated to 900 ±20℃ in a hydrogen atmosphere |
| Holding time, h | 1 hour |
| cooling | With speed not more than 5 ℃ / min. cooling to below 200 ℃ |
Style of supply
| Alloys Name | Type | Dimension | ||
| OhmAlloy-4J50 | Wire | D= 0.1~8mm | ||
| OhmAlloy-4J50 | Strip | W= 5~250mm | T= 0.1mm | |
| OhmAlloy-4J50 | Foil | W= 10~100mm | T= 0.01~0.1 | |
| OhmAlloy-4J50 | Bar | Dia= 8~100mm | L= 50~1000 | |
Company Profile
Ohmalloy Material Co.,Ltd
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.
Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.
Our company aims to be the best-quality alloy producer in the
world. We insist on developing the more advanced alloy strip
technology, to serve all the customer, improve people’s living
level, make a more green earth in the future
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