Main Products: Kovar alloy ,Invar 36 ,Permalloy ,invar ,Hiperco 50A
Offer Ceramvar Alloy 4J33 4J34 polished bar with high quality
USD $30 - $40 /Kilogram
Min.Order:1 Kilogram
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Xi'an Gangyan Special Alloy Co., Ltd.
Business Type: Manufacturer,Trading Company
Xianyang Shaanxi ChinaMain Products: Kovar alloy ,Invar 36 ,Permalloy ,invar ,Hiperco 50AProduct Details
4J33, 4J34 (Standard: YB/T5234-1993)
* Ceramvar alloy, ASTM F1466, (Fe-Ni27-Co25), Chinese 4J33/4J34
Relative Grade just for customer reference:
Grade | Russia | U.S.A. | Japan | Germany |
4J33 | 33Hk(Ni33Co17) | - | KV-4(Ni33Co17) | - |
4J34 | 31HK(Ni31Co20) 24HK(Ni25Co18) | Ceramvar(Ni27Co25) | - | Vacon20(Ni28Co20) |
Table 1 Grade & Chemical Composition
Grade | Chemical Composition (%) | |||||||
C | P | S | Mn | Si | Ni | Co | Fe | |
≤ | ||||||||
4J33 | 0.05 | 0.020 | 0.020 | 0.50 | 0.30 | 32.1~33.6 | 14.0~15.2 | Balance |
4J34 | 0.05 | 0.020 | 0.020 | 0.50 | 0.30 | 28.5~29.5 | 19.5~20.5 | Balance |
Notes: 1.Under condition that the average coefficient of the linear expansion meets the requirements of the standard,
the content of nickel and cobalt are allowed to deviate from the stated range.
2.The shape and dimensions of the alloys are in compliance with GB/T14985.
Table 2 Typical Coefficient of Linear Expansion
Grade | Mean Coefficient of Linear Expansion at Different Temperature /(10-6/K) | ||||
20~200℃ | 20.300℃ | 20~400℃ | 20~500℃ | 20~600℃ | |
4J33 | 7.1 | 6.5 | 6.3 | 7.1 | 8.5 |
4J34 | 7.5 | 6.9 | 6.6 | 6.9 | 8.3 |
Application: Ceramvar Alloy 4J33 4J34 sealing with 95%Al2O3 Ceramics.
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