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| Categories | Expansion Alloy |
|---|---|
| Brand Name: | KAIXIN |
| Model Number: | KX-Alloy40 |
| Certification: | ISO9001:2015 |
| Place of Origin: | China |
| MOQ: | 200KG |
| Price: | To negotiate |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 50~80TONS per MONTH |
| Delivery Time: | 45~60days |
| Packaging Details: | Wooden Box, size as per guests's request |
| Shape: | Wire,Strip,Rod,Tube,Plate |
| Alloy Type: | Iron Nickel Cobalt Alloy |
| Raw Materials: | NI32.4-33.4%,CO7-8%,Fe Rem |
| Executive standard: | YB/T 5241 |
| Delivery State: | Soft State |
| Application: | To produce a variety of klystron, microwave tube cavity in the electric vacuum industry |
| Features: | Low linear expansion coefficient in the range of 20-100°C and easy to cut machining. |
| Size: | Negotiable |
| Company Info. |
| Danyang Kaixin Alloy Material Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
KX 4J40 Corrosion Resistant Alloy Light Rod On Expansion Alloy
Product Description and Application
4J40 is also known as Alloy 40
4J40 is Fe-Ni-Co ternary alloy and its curie point is above 300℃. The alloy has a low expansion coefficient in the temperature range of -20 ~ 300℃, and the transformation from austenite (γ) to martensite (M) does not occur until -60℃. The alloy is mainly used in the manufacture of highly precise instrument parts and electronic devices requiring sizes in the temperature range of -50 to 300℃
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
| Alloy Grade | Chemical Composition (mass fraction)(％) | ||||||||
| C | Si | P | S | Mn | Cu | Ni | Co | Fe | |
| ≤ | |||||||||
| 4J40 | 0.05 | 0.15 | 0.02 | 0.02 | 0.25 | --- | 32.4～33.4 | 7.0～8.0 | Rem |
| Alloy Grade | Sample Heat Treatment Institution | Average coefficient of linear expansionα(10-6/ K) | |
| 20～100℃ | 20～300°C | ||
| 4J40 | The semi-finished sample was heated to 840±10°C, hold for 1 hour, water quenched, and then the sample was processed into finished sample. Heat preservation 1 hour at 315±l0℃ with furnace cooling or air cooling | ～ | ≤2.0 |
| Alloy Grade | Average Coefficient of Linear Expansion α(10-6/ K) | |||||
| 20～50℃ | 20～100℃ | 20～200℃ | 20～300℃ | 20～400℃ | 20～500℃ | |
| 4J40 | 1.4 | 1.3 | 1.2 | 1.7 | 4.5 | ～ |
Professional Customization
| Cold-drawn Wire | ¢0.3~¢18mm(Delivery in rolls or trays) |
| Hot-Rolling Wire | ¢5.5~¢20mm(Delivery in rolls) |
| Strip | thickness 0.1~4.5*width 6~350mm(Supply in rolls or straight strips) |
| Smooth Forged Rod on a Lathe | ¢60~350mm,L800-2500mm |
| Hot-rolled Burnishing | ¢20~80mm,L1000-5000mm |
| Cold Drawn and Burnishing | ¢2.5~18mm,L1000-8000mm |
| Seamless Tube | ¢1~275mm,wall thickness 0.2~30,L1000-8000mm |
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