Product Details
Place of Origin: China
Brand Name: KAIXIN
Certification: ISO9001:2015
Model Number: KX-Alloy42
Payment & Shipping Terms
Minimum Order Quantity: 200KG
Price: To negotiate
Packaging Details: Wooden Box, size as per guests's request
Delivery Time: 45~60days
Payment Terms: T/T, L/C
Supply Ability: 50~80TONS per MONTH
Features: |
There Is A Constant Expansion Coefficient In The Range Of 20~300°C |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Fe-Ni Constant Expansion Alloy |
Raw Materials: |
NI41.0-42.5%，Fe Rem |
Executive Standard: |
ASTM |
Delivery State: |
Sosoloid |
Application: |
Tools For Aerospace Composites, Thermostatic Rods, Semiconductor Lead Frames, Thermostatic Bimetallic Strips, Glass Seals For Microelectronic Components, Vacuum Devices And Light Bulbs. |
Size: |
Negotiable |
Features: |
There Is A Constant Expansion Coefficient In The Range Of 20~300°C |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Fe-Ni Constant Expansion Alloy |
Raw Materials: |
NI41.0-42.5%，Fe Rem |
Executive Standard: |
ASTM |
Delivery State: |
Sosoloid |
Application: |
Tools For Aerospace Composites, Thermostatic Rods, Semiconductor Lead Frames, Thermostatic Bimetallic Strips, Glass Seals For Microelectronic Components, Vacuum Devices And Light Bulbs. |
Size: |
Negotiable |
Product Description and Application
Alloy42 Fe-Ni constant expansion alloy is a series of constant expansion alloys which can be matched with soft glass and ceramic with different expansion coefficient in a given temperature range by adjusting the nickel content. The expansion coefficient and Curie point of Alloy42 Fe-Ni constant expansion alloy would increase with the nickel content increase . The alloy is a widely used sealing structure material in the electric vacuum industry, which is used to match the sealing with soft glass and ceramic on the production of electrical components, matching and sealing with corresponding soft glass in electric vacuum industry.
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
| Alloy Grade | C | P | S | Mn | Si | Al | Co | Ni | Fe |
| Alloy 42 | ≤0.05 | ≤0.02 | ≤0.02 | ≤0.8 | ≤0.3 | ≤0.1 | ≤1 | 41.0～42.5 | Rem |
| Density | 8.1g/cm3 |
| Melting Point | 1430℃ |
| State Code | State | Tensile strength/MPa |
| R | Soft | <590 |
| I | Hard | >820 |
| State Code | State | Tensile Strength/MPa |
| R | Soft | <570 |
| I | Hard | >700 |
| Alloy Grade | Sample Heat Treatment Institution | Average Coefficient of Linear Expansion α(10-6/ K) | ||
| 20～ 300 oC | 20～ 400 oC | 20～ 450 oC | ||
| Alloy 42 | It is heated to 900±20 oC in hydrogen atmosphere, insulated lh, and cooled to less than 200 oC at a speed of no more than 5 oC/ min | 4.0～ 5.0 | ------ | 6.5～7.5 |
| Alloy Grade | Average Coefficient of Linear Expansion α(10-6/ K) | ||||||
| 20～100℃ | 20～200℃ | 20～300℃ | 20～400℃ | 20～450℃ | 20～500℃ | 20～600℃ | |
| Alloy 42 | 5.6 | 4.9 | 4.8 | 5.9 | 6.9 | 7.8 | 9.2 |
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 |
