Loek Vacovit 500/Feni50/Nilo51 Expansion Alloy Rod for Electric Vacuum Industry 4j50 Precision Alloy Bar
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Product Attributes
- Customization
- Available
- Shape
- Bar
- Material
- Iron-Nickel-Cobalt Alloy
- Key Words
- 4j50 Precision Alloy
- Diameter
- 5mm - 600mm
- Length
- as Your Requirments
- Diameter Tolerance
- H9, H11, H13, K9, K11, K13 etc
- Sample
- Free-Sample
- Surface
- Lack, Peeled, Polishing, Bright, Sand Blast, Hl
- MOQ
- 100kgs
- Stock
- in Stock
- Carbon Content
- Low Carbon
- PCD
- 108mm
- Et
- 45mm
- Hole
- 6
- Product Type
- Tube/Pipe
- Transport Package
- Wooden Package
- Specification
- 4j50
- Trademark
- LORK
- Origin
- China
- HS Code
- 7219350000
- Production Capacity
- 50000kg/Month
- Package Size
- 100.00cm * 200.00cm * 100.00cm
- Package Gross Weight
- 50.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description
Introduction
LORK is a alloy manufacturer with 20 years of manufacturing experience.
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.
| FeNi Glass Sealing Alloys | |
| Grade | 4J42,4J45,4J50,4J52,4J54 |
| Size | Strip:(0.03-0.1)mm*(180-250)mm (0.1-1.0)mm*(10-250)mm (1.0-3.0)mm*(100-250)mm Wire:0.1-6.0mm Bar:20-100mm(Hot forging) 2.0-20mm(Cold drawing) |
| Features | 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. |
4J50 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 | / | Bal. |
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 |
4J50 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 |
Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .
Q2: Can I have free sample before making orders?
A2: Yes,we can supply free sample as requirement,but buyer needs to pay the freight charges ,the freight fee will return to buyer after making order.
Q3: How do you control the quality ?
A3: MTC and PMI will be sent before shipment,any 3rd party inspection if need .
Q4: How about your delivery time ?
A4: Generally delivery time is 15 working days .
Q5: How can I quickly get the price list ?
A5: Directly click "chat now" or send us email with detail specifications,you will get the official price list in 1 hour .
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR259932". Items marked "" are certified.
Company Profile
Lork Group is a supply chain management group focused on meeting the specialized specialty steel needs of strategic industries such as aerospace, biomedical, energy equipment, and semiconductor chips, providing clients with integrated solutions for full-lifecycle supply chain management.
We are not only a supplier of specialty steel materials, but also a precise connector between international demand for specialty steel and China's high-quality production capacity. Based on the principle of "Global Craftsmanship, Chinese Intelligent Manufacturing, " with end-to-end quality control at the core, we rigorously select suppliers and have been deeply engaged in China's special steel supply chain management industry for 15 years. We deeply integrate the cutting-edge technical standards of international specialty steel technology leaders with the efficiency of Chinese manufacturing, building a local supply chain matrix spanning East, North, and South China, becoming a super hub connecting international production processes with Chinese R&D and manufacturing.
Lork Group is committed to becoming a trusted, long-term, and valuable partner for the specialty steel industry, promoting the symbiotic and mutually beneficial relationship between international demand for specialty steel and China's high-end manufacturing.
Lork Group has been deeply engaged in the global specialty steel supply chain management industry for 15 years, serving over 2, 000 strategic clients in various industries, including aerospace, biomedical, energy equipment, and semiconductor chips, in over 50 major countries. Currently, the parent company oversees 11 wholly-owned subsidiaries, and has established an intelligent supply chain management matrix (Lork Select Supply Chain) for over 400 suppliers; A core set of over 5, 000 production and technical standards (covering seven major international standards); And over 1, 000 standard customer case studies. Lork is not only a witness to the transformation of the specialty steel industry, but also a builder of value in reshaping supply chain management.
About Our Factory & Business Background
- Address
- Erqi District, Shenglong Erqi Center, Building B, Zhengzhou, Henan, China
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays, one month
Off Season Lead Time: within 15 workdays, one month
Our Production Capability & Technical Expertise
- Main Products
- Nickel Alloy, Cobalt Alloy, Titanium Alloy, Stainless Steel, Precision Alloy, Medical Material, Rare Metal Alloy, Rare Earth Alloy, Super Alloy, Lork Aerospace Material
-
Customization Options
- Customization from Designs, Customization from Samples
Our Industry Experience & Global Business Record
- Main Markets
- North America, South America, Eastern Europe, Oceania, Mid East, Eastern Asia, Western Europe, Southeast Asia
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