About
Hite Special Alloy is a high-tech enterprise, mainly engaged in the production of Hastelloy, Monel, Inconel, nickel and other high-temperature alloys.
Brief introduction:
4J40 belongs to Fe-Ni-Co ternary alloy, and the Curie point is 300℃ above.
It haslow expansion coefficient in -20℃ to 300℃ temperature range, and does not undergo transformation of austenite (γ) → martensite (M) up to -60℃.
Mainly used to manufacture instrument parts and electronic components that require high precision in -50℃ to 300℃.
Chemical composition under YB/T5241-2005 standard:
| Grade | chemical composition,% | |||||||
| C | P | S | Si | Mn | Ni | Co | Fe | |
| MAX | ||||||||
| 4J40 | 0.05 | 0.02 | 0.02 | 0.15 | 0.25 | 32.4~33.4 | 7.0~8.0 | Remainder |
Remarks：If require adjustments for some chemical compositions, pls consult with us.
Typical average linear expansion coefficient value α,10-6/℃
| Grade | 20℃~50℃ | 20℃~100℃ | 20℃~200℃ | 20℃~300℃ | 20℃~400℃ | 20℃~500℃ |
| 4J40 | 1.4 | 1.3 | 1.2 | 1.7 | 4.5 | – |
Main product types:
wire,rod, bar,strip, tube.
Information about 4J40 comes from related articles of hite news
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