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Address: Room E-407, No.2, XugongQiao Road, Kunshan City, Jiangsu, 215332 China
Contact name:Allen Sun
Suzhou Xunshi New Material Co., Ltd |
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Expansion Alloy 4J6 For The Vacuum Display Screen ASTMF31-16
4J6 is a typical glass sealing alloy, the coefficient of expansion is similar to the soft glass in the temperature range of 20~400℃. The alloy contains 6% chromium, and after oxidation treatment the alloy surface produces a very dense oxide membrane that is strongly bound to the substrate and well infiltrated with the soft glass, so that can get high strength sealing surface.
The alloy is an important sealing structure material in the electric vacuum industry, In addition, the alloy contains 42% nickel, that is why the US label is called 42Ni-6Cr (Glass sealing 42-6, UNSK94760).American Carpenter also produced the alloy that called Carpenter 42-6.
Chemical Composition(wt, %)
| C | P | S | Si | Mn | Al | Ni | Cr | Fe |
| 0.05 max | 0.020 max | 0.020 max | 0.30 max | 0.25 max | 0.20 max | 41.5-42.5 | 5.5-6.3 | Rem |
Equal Grades
Physical performance
| Grade | Heat treatment | Mean line coefficient of expansion(10-6/°C) | ||
| 20-300°C | 20-400°C | 20-450°C | ||
| 4J6 | Heat to 1100 °C ± 20 °C in a vacuum or hydrogen atmosphere and temperature insulation for 15 minutes, then cooling down to below 200 °C for no more than 5 °C / minutes | 7.6-8.3 | 9.5-10.2 | - |
Density:
8.11g/cm3
Standards
ASTMF31-16(Glass sealing 42-6),YB/T 5253-2005
Available forms
Stip,Rod,pipe ,plate and tube
Application
The alloy has stable performance and used by the aviation factories long term.It is mainly used to make various electric vacuum components, such as the anode cap of the electronic beam tube, the Vacuum display Screenand so on.
About XUNSHI
Suzhou Xunshi New Material Co. Ltd- referred as XUNSHI hereafter, is a professional manufacturer of high-performance alloy products. XUNSHI is engaged in supplying high quality and cost-effective Superalloy, Anti-Corrosion Alloy, Precision Alloy, Special Stainless Steel and Magnetostrictive Material to customers worldwide.
Why XUNSHI
· Highly experienced in alloy industry
· Top experts of industry in China
· Advanced technology and process from top famous institutes in China
· Advanced devices through whole production and inspection process
· Strict quality control system
· Company motto: best service, most value
· Smart sales policy
Service Items of XUNSHI
· Non-standard product research and pre-production
· Fabrication of products
· Cutting, splitting for sheets and plates in stock
· Heat treatment (Solution treatment, aging harden treatment, anneal, spring temper, quench etc.)
· Surface finish (peeling, gridding, polishing)
· Logistics service
· Customized packing service (also for exporting)
· Import and export (XUNSHI is certificated)
· Document translation
· Hard-to-find material sourcing
Customers of XUNSHI
Customers of XUNSHI are all over China (Taiwan and Hong Kong included). And we are exporting to USA, Canada, Italy, UK, Poland, Greece, Russia, Turkey, Iran, Israel, South Africa, South Korea, North Korea, India, Argentina, and Brazil and so on. Customers from 30+ countries trust us.
Where is XUNSHI
A- XUNSHI is in Huaqiao, Kunshan, 215332 China, which is very closed to Shanghai.
B- Xunshi is around 80KM from Shanghai Pudong International Airport (PVG).
C- 20KM from Shanghai Hongqiao Airport
D- 20KM from Shanghai Hongqiao Railway Station
E- You can contact XUNSHI sales for a pickup service.
