Project Description

FeNiCr Glass Sealing Alloy

Alloy

4J06, 4J47, 4J49, 4J6A, 4J6B, 4J49A

Equivalents Grade

GBГОСТ
4J4747НХ
4J4947НХР

Specification

YB/T5235-93, Q/SYY 7-1999, ГОСТ 10994-1974, ГОСТ 14080-78

Product Forms

Sheet, Strip, Plate, Round Bar, Flat Bar, Forgings, Hexagon, Wire

Chemical Composition, %

AlloyCMnSiPSBAlNiCrFe
4J06≤0.05≤0.25≤0.3≤0.02≤0.02≤0.0241.5-42.55.5-6.3Rest
4J47≤0.05≤0.4≤0.3≤0.02≤0.0246.8-47.80.8-1.4Rest
4J49≤0.05≤0.4≤0.3≤0.02≤0.02≤0.0246-485.0-6.0
4J6A≤0.050.15-0.30.15-0.3≤0.02≤0.02≤0.341.5-42.55.4-6.2Rest
4J6B≤0.050.15-0.30.15-0.3≤0.02≤0.020.1-0.241.5-42.55.4-6.2Rest
4J49A≤0.030.1-0.30.1-0.3≤0.02≤0.020.1-0.2546-485.8-6.5Rest

Average Linear Expansion Coefficient

AlloyHeat treatment for sampleAverage linear expansion coefficient a/10-6.K-1
20~300℃20~400℃
4J06Heating to temperature between 1100℃±20℃ in a protective or vacuum atmosphere. Holding for 15min, cooling to 200℃ at a rate less than 5℃ per min, then air cooling7.6~8.39.5-10.2
4J478.1~8.7
4J498.6~9.39.4~10.1
4J6AHeating to temperature between 850-900℃ in a protective or vacuum atmosphere. Holding for 1hour, cooling to 400℃ at a rate less than 300℃ per hour, then air cooling9.5~10.2
4J6B9.6~10.2
4J49A9.9~10.6

Feature

FeNiCr Glass Sealing Alloys take on a similar linear expansion coefficient with soft glass under a certain range of temperature.

Application

They are mainly used for match sealing in soft glass in electronic vacuum industry. Among them, 4J49A, 4J6A can be applied for producing anode caps in kinescopes and connection frames in screen.