4J28 expansion alloy

4J28 expansion alloy features

Within a certain temperature range, it has a linear thermal expansion coefficient similar to that of soft glass and is corrosion resistant.

 

4J28 expansion alloy use

In the electric vacuum industry, matching sealing is performed with corresponding soft glass.

 

chemical composition(%)

Alloy	C≤	S≤	P≤	Si≤	Mn≤	N≤	Ni≤	Cr	Fe
4J28	0.12	0.02	0.02	0.70	1.00	0.20	0.50	27.0 29.0	Margin

 

The above data is for reference only. Please contact us for specific requirements.