Product Details
Place of Origin: China
Brand Name: KAIXIN
Certification: ISO9001:2015
Model Number: KX-Alloy EX29
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: |
Sealing Alloy Used For Hard (high Borosilicate) Glass Metal Alloy Sealing |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Nickel-iron-cobalt |
Raw Materials: |
NI28.5-29.5%,CO16.8-17.8% |
Executive Standard: |
ASTM F15 |
Delivery State: |
Soft State |
Application: |
Precision Instruments, Aerospace And Etc High-tech Fields |
Size: |
Negotiable |
Features: |
Sealing Alloy Used For Hard (high Borosilicate) Glass Metal Alloy Sealing |
Shape: |
Wire,Strip,Rod,Tube,Plate |
Alloy Type: |
Nickel-iron-cobalt |
Raw Materials: |
NI28.5-29.5%,CO16.8-17.8% |
Executive Standard: |
ASTM F15 |
Delivery State: |
Soft State |
Application: |
Precision Instruments, Aerospace And Etc High-tech Fields |
Size: |
Negotiable |
Product Description and Application
4J29 is also know as Ni29Co18, Nilo K
4J29 is a typical Fe-Ni-Co hard-glass sealing alloy, which has been used in aviation factories for a long time with stable performance. The alloy has a dense oxide film, which can be well infiltrated by glass. It is the main sealing structural material of electric vacuum devices and mainly used for the glass sealing of electric vacuum components such as transmitter tube, oscillation tube, ignition tube, magnetron, transistor, sealing plug, relay, lead line of integrated circuit, chassis, shell, bracket and etc.
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
| Nilo K Chemical composition% | ||||||||||
| C | P | S | Mn | Si | Cu | Cr | Mo | Ni | Co | Fe |
| ≤0.03 | ≤0.02 | ≤0.02 | ≤0.5 | ≤0.3 | ≤0.2 | ≤0.2 | ≤0.2 | 28.5～29.5 | 16.8～17.8 | Rem |
| Density | 8.36g /cm3 |
| Status code | State | Tensile strength/MPa |
| R | Soft State | <585 |
| ¼I | ¼Hard State | 585～725 |
| ½I | ½Hard State | 655～795 |
| ¾I | ¾Hard State | 725～860 |
| I | Hard State’ | >860 |
| Grade | Sample Heat Treatment Institution | Average Coefficient of Linear Expansion α/(10-6/ K) | ||
| 20-300 ℃ | 20-400 ℃ | 20-450 ℃ | ||
| 4J29 | It was heated to 900±20 ℃ in hydrogen atmosphere, held for 1h, then reheated to 1100±20 ℃, held for 15min,then cooled to below 200 ℃ at a speed of no more than 5 ℃/ min | ---- | 4.6～5.2 | 5.1～5.5 |
| Alloy | Average Linear Expansion Coefficient α/(10-6/ K) | |||||||
| Grade | 20～200 ℃ | 20～300 ℃ | 20～400 ℃ | 20～450 ℃ | 20～500 ℃ | 20～600 ℃ | 20～700 ℃ | 20～800 ℃ |
| 4J29 | 5.9 | 5.3 | 5.1 | 5.3 | 6.2 | 7.8 | 9.2 | 10.2 |
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 |
