1J50 4J29 4J36 4J49 Precision Alloy 4j36 Low Expansion Alloy Wire 4j29 4j50 Nickel Iron Alloy Kovar Tube

1J50 4J29 4J36 4J49 Precision Alloy 4j36 Low Expansion Alloy Wire 4j29 4j50 Nickel Iron Alloy Kovar Tube

Company Profile

Hongye stands out with its unique capabilities! As a leading global metal distribution company, we provide tailored product solutions to meet our clients' needs, helping them gain a competitive edge.

Founded in 2009 and headquartered in Wuxi, China, Hongye has made significant achievements in the aerospace, defense, transportation, shipbuilding, semiconductor, energy, and construction sectors over the past five years.

We offer solutions in sheets, pipes, profiles, building materials, specialty steels, stainless steels, and non-ferrous metals. Additionally, our involvement in finance and port operations strengthens our position in the metal import and export market.

With our integrated “one-stop” services that include procurement, processing, retail, and logistics, Hongye has become an industry benchmark. We excel in delivering high-quality, cost-effective products, supported by robust supply chain management to meet customer needs continuously.

Internationally, Hongye has established a solid business network in Europe, Southeast Asia, and the Middle East. Our multilingual and culturally adept trade team ensures efficient and professional service for every transaction.

Since 2010, Hongye has made notable progress in sustainability, recognized by multiple institutions. By the end of 2012, we had invested 1.22 billion RMB (200 million USD) in China's metal distribution industry, becoming a significant local investor. We aim to expand our market share through collaboration and innovation.

Looking ahead, Hongye will continue to globalize, leveraging our experience and resources to grow our international market share and aspire to be a leader in the global metal distribution industry.

Our goal is to rank among the top 10 in comprehensive strength in China's metal distribution market.

Product Specification

1J50 (Alloy 42):

• Composition: 58% Ni, 42% Fe
• Thermal Expansion Coefficient: 4.6 x 10^-6 /°C
• Electrical Resistivity: 82 μΩ·cm
• Density: 8.14 g/cm³
• Melting Point: 1450°C
• Hardness: 95-105 HRB
• Tensile Strength: 450-550 MPa
• Yield Strength: 275-375 MPa

4J29 (Alloy 29):

• Composition: 71% Ni, 29% Fe
• Thermal Expansion Coefficient: 5.1 x 10^-6 /°C
• Electrical Resistivity: 68 μΩ·cm
• Density: 8.24 g/cm³
• Melting Point: 1430°C
• Hardness: 90-100 HRB
• Tensile Strength: 585-685 MPa
• Yield Strength: 415-515 MPa

4J36 (Alloy 36):

• Composition: 64% Ni, 36% Fe
• Thermal Expansion Coefficient: 5.0 x 10^-6 /°C
• Electrical Resistivity: 76 μΩ·cm
• Density: 8.18 g/cm³
• Melting Point: 1440°C
• Hardness: 90-100 HRB
• Tensile Strength: 550-650 MPa
• Yield Strength: 380-480 MPa

4J49 (Alloy 49):

• Composition: 51% Ni, 49% Fe
• Thermal Expansion Coefficient: 5.3 x 10^-6 /°C
• Electrical Resistivity: 85 μΩ·cm
• Density: 8.05 g/cm³
• Melting Point: 1460°C
• Hardness: 95-105 HRB
• Tensile Strength: 515-615 MPa
• Yield Strength: 340-440 MPa

Kovar (4J29):

• Composition: 54% Co, 29% Ni, 17% Fe
• Thermal Expansion Coefficient: 5.1 x 10^-6 /°C
• Electrical Resistivity: 48 μΩ·cm
• Density: 8.36 g/cm³
• Melting Point: 1450°C
• Hardness: 90-100 HRB
• Tensile Strength: 585-685 MPa
• Yield Strength: 415-515 MPa

Product Description

Product Characteristics

 

Okay, let's review the key product characteristics for these precision alloy materials:

1J50 (Alloy 42):

• Fe-Ni alloy with 58% nickel
• Very low coefficient of thermal expansion (4.6 x 10^-6 /°C)
• High electrical resistivity (82 μΩ·cm)
• Good corrosion resistance
• Easily fabricated and welded

4J29 (Alloy 29):

• Fe-Ni alloy with 71% nickel
• Low coefficient of thermal expansion (5.1 x 10^-6 /°C)
• Low electrical resistivity (68 μΩ·cm)
• Excellent thermal and electrical conductivity
• Good strength and ductility

4J36 (Alloy 36):

• Fe-Ni alloy with 64% nickel
• Low coefficient of thermal expansion (5.0 x 10^-6 /°C)
• Moderate electrical resistivity (76 μΩ·cm)
• Good thermal and electrical properties
• Excellent corrosion resistance

4J49 (Alloy 49):

• Fe-Ni alloy with 51% nickel
• Slightly higher thermal expansion (5.3 x 10^-6 /°C)
• Higher electrical resistivity (85 μΩ·cm)
• Good mechanical strength and formability
• Widely used in electronics and electrical applications

Kovar (4J29):

• Fe-Ni-Co alloy with 54% cobalt
• Low coefficient of thermal expansion (5.1 x 10^-6 /°C)
• Very low electrical resistivity (48 μΩ·cm)
• Excellent thermal and electrical conductivity
• Highly machinable and weldable

The key characteristics that differentiate these alloys are the specific nickel and cobalt contents, which impact the thermal expansion, electrical, and mechanical properties. Selection depends on the application requirements for thermal matching, electrical performance, fabrication, and corrosion resistance.

 

 

Application of the product

 

Okay, let's review the key applications for these precision nickel-iron alloy materials:

1J50 (Alloy 42):

• Hermetic seals and glass-to-metal seals in electronics packaging
• Headers and feedthroughs for transistors and integrated circuits
• Thermal expansion matching in electronic and electrical components

4J29 (Alloy 29):

• Transistor headers and integrated circuit packages
• Thermocouple components and other electrical/electronic applications
• Thermal expansion matching for glass-to-metal and ceramic-to-metal seals

4J36 (Alloy 36):

• Hermetic seals and glass-to-metal seals in electronics
• Sensor housings and other precision electronic components
• Thermal expansion matching applications

4J49 (Alloy 49):

• Transistor headers and integrated circuit packages
• Electrical connectors and other electronic components
• Thermal expansion matching for glass, ceramic, and metal seals

Kovar (4J29):

• Hermetic seals and glass-to-metal seals in electronics
• Sensor housings and other precision electronic components
• Thermal expansion matching for glass, ceramic, and metal seals

The common theme is the use of these nickel-iron and nickel-iron-cobalt alloys in electronics, electrical, and instrumentation applications where very precise thermal expansion matching and good electrical/corrosion properties are required.

 

 

FAQ

Q1: Are you trading company or manufacturer?

A: We are the manufacturer with 3 factories. Specializing in producing welded Wear plate, carbon steel profile, Carbon Products bollard for over 10 years.

Q2:What product information must I provide before making a purchase?
A:Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require.

Q3:What are your payment terms?
A: 30% T/T in advance and 70% balance before shipment or based on BL copy or LC at sight.

Q4:Is it possible to send samples?
A: Of course, we offer free samples and express shipping to customers all over the world.

Q5:Do you offer a service for customized products?
A: Yes, we can produce according to your specifications and drawings.

Q6:Can you assist me in importing steel products for the first time?
A: Yes, we have shipping agent who will arrange the shipment with you.
Q7. What is your delivery time?
A: Within 7 working days after receiving your balance payment.