4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,

Product Details
Customization: Available
Type: Nickel Pipe
Standard: AISI, ASTM, DIN, JIS, GB, BS
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  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
  • 4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
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  • Overview
  • Product Description
  • Detailed Photos
  • Company Profile
  • Factory workshop
  • Product application
  • Packaging & Shipping
  • FAQ
Overview

Basic Info.

Model NO.
4J33 Ni33Co14 Co257
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

  

4J33 is a precision nickel-cobalt-iron alloy designed for applications requiring controlled thermal expansion and high dimensional stability. It is widely used in glass-to-metal sealing, electronic components, and aerospace applications.

 

Specifications:

Property Details
Alloy Composition Nickel (Ni) ~33%, Cobalt (Co) ~14%, Iron (Fe) Balance
Equivalent Grades Co257, 38НК
Density ~8.3 g/cm³
Tensile Strength ~500-700 MPa
Yield Strength ~300 MPa
Elastic Modulus ~130-150 GPa
Elongation ~20-30%
Hardness ~160-200 HV
Coefficient of Thermal Expansion (CTE) ~5.5 × 10 /°C (20-300°C)
Magnetic Permeability Moderate
 

Key Features:

Controlled Thermal Expansion - Ensures dimensional stability in critical applications.
Good Corrosion Resistance - Performs well in oxidizing and reducing environments.
High Strength & Durability - Suitable for demanding engineering applications.
Excellent Weldability & Machinability - Can be easily processed and shaped.

 

Common Applications:

Electronic & Optical Components:

  • Used in hermetic sealing, connectors, and relay parts.

Aerospace & Defense:

  • Applied in sensor housings, precision instruments, and aircraft structures.

Glass-to-Metal & Ceramic-to-Metal Sealing:

  • Used in sealed enclosures for electronic and vacuum devices.

Measurement & Precision Devices:

  • Ideal for high-accuracy instruments requiring dimensional stability.
 

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

4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,

Company Profile


4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing, 

 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.
4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
 
4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
 

 

 
 
 
Factory workshop

4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,

Product application

4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,

Packaging & Shipping

4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,
4j33 Ni33co14 CO257 38Н К 4j33 Nickel Alloy Round Pipe/Tube for Glass-to-Metal Sealing,

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 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!

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