Product Properties

● Other names:/● Origin: Danyang, Jiangsu, China

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15077888740

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Product Description

● Alloy category: expansion alloy

● Base material shape: wire/strip/bar/pipe/plate

Application field: industrial field

Product Description and Application

4J33 is a fixed expansion porcelain sealing alloy, which is a ceramic sealing alloy developed by combining the characteristics of our country's ceramics. The linear expansion coefficient of the alloy is similar to that of 95% Al2O3 ceramics in the temperature range of -60 ℃ ~ 600 ℃. It is mainly used for matching sealing with ceramics, and is an important sealing structural material in the electric vacuum industry.

Ingredient content of 4J33

Element	Ni	Fe	C	Si	Mn	S	P	Co
4J33	32.1%~33.6%	50.33%~53.03%	≤0.03%	≤ 0.3%	≤0.5%	≤0.02%	≤0.02%	14.0%~15.2%

Key words:

4J33

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