42Ni-6Cr Expansion Alloy 4J6 Stip Rod Pipe
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 4j6 contains 42% nickel, that is why the US label is
called the 42Ni-6Cr (Glass sealing 42-6, UNSK94760). US Carpenter
also produced the alloy called Carpenter 42-6 .
Equal Grades
| Grade | Russia | America | Japan | France | Germany |
4J６Just
| Н42X6 | 42Ni-6Cr Carpenter42-6 Sylvania4 Sealmet 4 | NRS-1 YEF-426 SNC | ASV(426) Ni42Cr6 | Vacovit426 (NiCr426) |
Chemical composition(%)
| Grade | C | P | S | Mn | Si | Al | Ni | Cr | Fe |
| 4J6 | ≤0.05 | ≤ 0.020 | ≤ 0.020 | ≤ 0.25 | ≤ 0.30 | ≤0.20 | 41.5~42.5 | 5.40~6.30 | Balance |
Glasssealing 42-6 | ≤0.07 | ≤0.025 | ≤0.025 | ≤0.25 | ≤0.30 | ≤0.20 | 41.0-43.0 | 5.0-7.0 | Balance |
Physical performance
| Grade | Heat treatment | Average 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 | - |
Typical expansion coefficient
| Temperature range(°C) | 20-100 | 20-100 | 20-300 | 20-400 | 20-450 | 20-500 | 20-600 |
| Average coefficient of linear expansion (μm/m·°C) | 6.8 | 7.0 | 7.7 | 9.7 | - | 11.1 | 12.2 |
Density: 8.11g/cm3
Standards:
- ASTM F31-16(Glass sealing 42-6)
- YB/T 5253-2005
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 screen and so on.
Available forms
Stip,Rod,pipe ,plate and tube
Our 4J6 precision strips were exported to the United States to a
well-known air headphones and hearing aid manufacturer. The product
quality was won the trust of international customers.
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.
