Product Details
Place of Origin: China
Brand Name: KAIXIN
Certification: ISO9001:2015
Model Number: KX-Alloy EX44
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: |
It Has Good Sealing, Weldability, Corrosion Resistance, Workability And Free-cutting Machinability |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Fixed Expansion Sealing Fe-Ni-Co Alloy |
Raw Materials: |
NI34.2-35.2%,CO8.5-9.5%,Fe Rem |
Executive Standard: |
YB/T 5231 |
Delivery State: |
Soft State |
Application: |
It Is Suitable For Electric Vacuum Devices Such As Transmitting Tube, Oscillation Tube, Ignition Tube, Transistor, Tube Seal Plug And Relay Shell |
Size: |
Negotiable |
Features: |
It Has Good Sealing, Weldability, Corrosion Resistance, Workability And Free-cutting Machinability |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Fixed Expansion Sealing Fe-Ni-Co Alloy |
Raw Materials: |
NI34.2-35.2%,CO8.5-9.5%,Fe Rem |
Executive Standard: |
YB/T 5231 |
Delivery State: |
Soft State |
Application: |
It Is Suitable For Electric Vacuum Devices Such As Transmitting Tube, Oscillation Tube, Ignition Tube, Transistor, Tube Seal Plug And Relay Shell |
Size: |
Negotiable |
Product Description and Application
Alloy 44 is also known as 4J44
Alloy 44 has a certain coefficient of linear thermal expansion over a certain temperature range. It is used to make iron-nickel-cobalt alloy strip, bar, plate and pipe with hard glass matching sealing. It is suitable for electric vacuum devices such as transmitting tube, oscillation tube, ignition tube, transistor, tube seal plug and relay shell.
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
Alloy 44 Chemical Composition% | ||||||||||
C | P | S | Mn | Si | Cu | Cr | Mo | Ni | Co | Fe |
Not more than | ||||||||||
0.03 | 0.02 | 0.02 | 0.5 | 0.3 | 0.2 | 0.2 | 0.2 | 34.2~35.2 | 8.5~9.5 | Rem |
Alloy Grade | Sample Processing |
Average Linear Expansion Coefficient a/10-6·K-1 |
State | Tensile Strength | ||
Alloy 44 | It was heated to 900± 20℃ in hydrogen atmosphere, hold for 1 hour, then heat to 1100±20℃, hold for 15min, then cool to below 200℃ at a speed of no more than 5℃/min. | 200-300℃ | 20-400℃ | 20-450℃ | M(Soft State) | <570 |
4.3-5.1 | 4.6-5.2 | / | 1/2H(Hard State) | 590-700 | ||
3/4H(Hard State) | 600-770 | |||||
H(Hard State) | >700 |
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 |