Danyang Kaixin Alloy Material Co., Ltd.
| 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 | 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 |
| Features | It has good sealing, weldability, corrosion resistance, workability and free-cutting machinability |
| Size | Negotiable |
| Brand Name | KAIXIN |
| Model Number | KX-Alloy EX44 |
| Certification | ISO9001:2015 |
| Place of Origin | China |
View Detail Information
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Product Specification
| 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 | 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 |
| Features | It has good sealing, weldability, corrosion resistance, workability and free-cutting machinability | Size | Negotiable |
| Brand Name | KAIXIN | Model Number | KX-Alloy EX44 |
| Certification | ISO9001:2015 | Place of Origin | China |
Product Description and Application
4J44 is also known as Alloy 44
4J44 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)
| 4J44 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 | ||
| 4J44 | 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 |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2007
Total Annual:
10000000-30000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Danyang Kaixin Alloy Materials Co., Ltd. was founded on April 18th, 2007, covering an area of 13500 square meters with a registered capital of 20 million yuan. It is a professional enterprise engaged in independent production,research and development of high performance alloy materials such as preci... Danyang Kaixin Alloy Materials Co., Ltd. was founded on April 18th, 2007, covering an area of 13500 square meters with a registered capital of 20 million yuan. It is a professional enterprise engaged in independent production,research and development of high performance alloy materials such as preci...
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