4j29 Ni29co17 Kv-1 Kovar Feni28co18 Vacon10 Ni29co17 29И К 18А Nickel Alloy Round Pipe/Tube

• Customization: Available
• Type: Nickel Pipe
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: 4J29 Ni29Co17 KV-1 Kovar FeNi28Co18 Vacon10
• Composition: Precision Alloy
• Technique: Cold Drawn
• Shape: Pipe
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Power Plant Desulfurization and Denitration, Therm
• MOQ: 20kg
• Trade Terms: EXW, Fob, CIF, CFR
• Stock: Stock Available
• Delivery Time: 10-15day
• Transport Package: Marine Packaging of Metal
• Specification: 10-300mm or customizable
• Trademark: Titanium-nickel alloy
• Origin: China
• HS Code: 7226920000
• Production Capacity: 5000ton/Month

Product Description

 

Product Description

 

4J29, also known as Kovar, is a nickel-cobalt-iron alloy with a low and controlled thermal expansion rate. It is widely used in electronic and semiconductor packaging, hermetic sealing applications, and precision instruments, especially where glass-to-metal or ceramic-to-metal bonding is required.

 

Specifications:

Property	Details
Alloy Composition	Nickel (Ni) ~29%, Cobalt (Co) ~17%, Iron (Fe) balance
Equivalent Grades	KV-1, FeNi28Co18, Vacon10, Ni29Co17, 29ИК18А
Density	~8.3 g/cm³
Tensile Strength	~500-600 MPa
Yield Strength	~300 MPa
Elastic Modulus	~140 GPa
Elongation	~20%
Hardness	~150-180 HV
Coefficient of Thermal Expansion (CTE)	~5.2 × 10 /°C (20-300°C)
Magnetic Permeability	High

 

Key Features:

Controlled Thermal Expansion - Matches the expansion of glass and ceramics, making it ideal for sealing applications.
High Mechanical Strength - Provides durability in electronic enclosures and structural components.
Good Weldability & Machinability - Easily machined, welded, and processed for complex shapes.
Excellent Hermetic Sealing - Used in applications requiring airtight seals against gases and moisture.

 

Common Applications:

Electronic & Semiconductor Packaging:

• Used in IC packages, transistor housings, and optical fiber components.

Aerospace & Defense:

• Applied in radar systems, high-frequency tubes, and sensor enclosures.

Medical Devices & Scientific Instruments:

• Used for X-ray tubes, vacuum tubes, and laboratory equipment.

Power & Energy Industry:

• Found in electrical relays, switches, and battery terminals.

 

Available Sizes & Customization:

Product Form	Outer Diameter (OD)	Wall Thickness (WT)	Length
Round Pipe/Tube	1mm - 200mm	0.1mm - 10mm	Customizable
Rod/Bar	1mm - 100mm	Solid	Customizable

Custom dimensions, heat treatment, and surface finishing available upon request.

Detailed Photos

Company Profile

 Shandong Titanium Nickel Special Steel Co., Ltd., registered funds (one thousand yuan for 10,000 yuan), the company is mainly committed to high -tech enterprises that are integrated with special alloy materials, specializing in the research and sales of special alloys such as nickel -based and iron -based. Products include corrosion-resistant alloys, superalloys, precision alloys, Hastelloy, Monel, INCONEL, INCOLOY, copper-nickel alloys, titanium and titanium alloys, zirconium and zirconium alloys, nickel and nickel-based alloys, nickel-cobalt-based heat-resistant alloys , Hafnium alloy, etc., more than 60 kinds of alloy materials such as special stainless steel. On the basis of stabilizing the quality of the original products, according to the market demand, it solves the quality problems existing in the traditional metallurgical process, and ensures the low miscellaneous and low deflection of the alloy material products, which has won an excellent reputation in the industry.

 

 

 

 

 

 

Factory workshop

Product application

Packaging & Shipping

FAQ

 

1. What are precision alloy tubes?

Precision alloy tubes are high-performance metal tubes made from specialized alloys, such as nickel-based, iron-nickel, and cobalt-based alloys. They offer excellent mechanical, thermal, and magnetic properties for demanding applications in aerospace, electronics, and industrial fields.

2. What types of precision alloy tubes are available?

We offer various types, including:

• Nickel Alloy Tubes (e.g., Inconel, Monel, Hastelloy)
• Iron-Nickel Alloy Tubes (e.g., 1J06, 1J50, 1J79)
• Cobalt-Based Alloy Tubes (e.g., Kovar, Superalloys)
• Stainless Steel Precision Tubes

3. What are the advantages of using precision alloy tubes?

• High strength and durability
• Excellent corrosion and oxidation resistance
• Superior thermal stability
• Good magnetic and electrical properties
• Precise dimensional tolerances

4. What industries use precision alloy tubes?

Precision alloy tubes are widely used in:

• Aerospace & Aviation - Engine components, heat exchangers
• Electronics & Semiconductors - Magnetic shielding, sensor components
• Medical Equipment - Surgical instruments, implants
• Energy & Power - Nuclear reactors, high-temperature piping
• Automotive - Exhaust systems, fuel injectors

5. What are the standard dimensions and tolerances?

We provide tubes with customized outer diameters, wall thicknesses, and lengths based on customer specifications. Our precision manufacturing ensures tight dimensional tolerances for high-performance applications.

6. How are precision alloy tubes manufactured?

The manufacturing processes include:

• Cold Drawing - For high dimensional accuracy and smooth surfaces
• Hot Rolling - For enhanced mechanical strength
• Seamless or Welded Production - Depending on the application
• Heat Treatment & Surface Finishing - To improve performance characteristics

7. How do I choose the right high-temperature alloy pipe for my application?
Factors to consider include:

• Operating temperature and pressure

• Corrosive environment (acidic, alkaline, seawater, etc.)

• Mechanical strength requirements

• Compliance with industry standards and regulations

• Cost and availability

8. How can I get a quote?

You can request a quote through the following methods:

• Submit a quote request form on our website
• Call our sales hotline
• Contact us via email Please provide details such as the alloy type, specifications, quantity, and delivery location to receive an accurate quote.

9. Do you support international shipping?

Yes, we offer worldwide shipping. Our experienced logistics team can assist with various international shipping issues, including transportation options, customs handling, and destination requirements.

10. What payment methods do you accept?

We accept various payment methods, including bank transfers, credit card payments, PayPal, and more. The specific payment method can be confirmed based on the order amount and customer preferences.

11. Do you offer returns or exchanges?

Due to the customized or specialty nature of Hastelloy materials, our return and exchange policy is strict. Standard stock products can be returned or exchanged if they are unused and unprocessed. Please confirm the return/exchange conditions and process with our sales team before placing an order.

12. What certifications or documentation do you provide?

We can provide the following certifications and documents:

• Material inspection reports
• Material certificates
• Compliance certificates (e.g., ISO 9001 certification)
• Other certification documents as required by the customer

13. Do you offer processing or customization services?

Yes, we provide customized processing services for Hastelloy alloys, including cutting, welding, precision machining, and more. Whether it's standard dimensions or special requirements, we can process the materials to meet your needs.

14. How can I contact you for more information?

You can contact us through the following methods:

Online support: Visit our website for live chat

Address: 300 Meters North of Liaoniu Road and Xindong Ring Road, Liaocheng High-Tech Zone, Liaocheng, Shandong, China

We look forward to providing you with high-quality products and services!

If you have any other questions, feel free to contact us, and we will do our best to assist you!