4J29 (executive standard GB / T 15018-1994 Yb / T 5231-1993)

Chemical composition of 4J29:

Physical performance of 4J29:

4J29 annealed state, mechanical properties of the alloy at room temperature:

This alloy has the following properties:

4J29 alloy has a linear expansion coefficient similar to that of borosilicate hard glass at 20-450 ℃, a high Curie point, and a good low-temperature structure stability, which does not interact with mercury. The oxide film of the alloy is compact and can be well infiltrated by glass.

Metallographic structure of 4J29:

4J29 alloy is austenitic

The application fields of 4J29 include:

4J29 alloy is a typical Fe Ni Co hard glass sealing alloy in the world. It has been used for a long time in the aviation factory and its performance is stable

1. It is used for glass sealing of electric vacuum components such as emission tube, oscillation tube, pilot tube, magnetron, transistor, sealing plug, outgoing line of relay, integrated circuit, chassis, shell, bracket, etc

Products of our company:

Wire, wire and strip cold and hot plate, forging bar, hot rolling bar, tube and tube machining finished product