Location：
Brief introduction:
It's nickel-iron controlled-expansion alloy with Ni50% nominal value.
It's widely used as sealing structural material in the electric vacuum industry.
Main specifications:
Chinese UK USA France Germany Russia Japan 4J50 Nilo51 FeNi50 N50 Vacodil 500 50H NS-1 Chemical composition under YB/T5235-2005 standard:
Grade chemical composition,% C P S Mn Al Si Co Ni Fe MAX 4J50 0.05 0.02 0.02 0.8 0.1 0.3 - 49.5~50.5 Remainder Remarks：If require adjustments for some chemical compositions, pls consult with us.
Tensile strength under YB/T5235-2005 standard:
delivery condition Tensile strength of strip ,N/mm2 Soft ＜590 Hard ＞700 Typical average linear expansion coefficient value α,10-6/℃
Grade 20℃~100℃ 20℃~200℃ 20℃~300℃ 20℃~400℃ 20℃~450℃ 20℃~500℃ 20℃~600℃ 4J50 9.8 9.8 9.5 9.4 - 9.7 10.6 Main product types:
wire,rod, bar,strip, plate/sheet,tube.
