Nickel Kovar Invar Alloy 4j29 4j32 4j33 4j36 4j50 Controlled Expansion Alloy ASTM F15 Nickel: ~36% Iron Alloy

Product Description

                                                                                    Invar 36

Invar 36, also known simply as Invar, is a specialized nickel-iron alloy renowned for its extremely low coefficient of thermal expansion. The name "Invar" is derived from the word "invariable," reflecting its dimensional stability over a wide range of temperatures.

Key Properties:

1. Composition:

   • Nickel: ~36%
   • Iron: ~64%
   • May include trace elements like carbon, chromium, or cobalt for specific applications.

   • Low Thermal Expansion:

     • Invar 36 has a near-zero coefficient of thermal expansion (CTE) in the temperature range of approximately -100°C to 200°C, making it highly resistant to size changes with temperature variations.

   • High Dimensional Stability:

     • Ideal for precision engineering applications where stability is critical.

   • Magnetic Properties:

     • Retains significant magnetic properties at room temperature but loses magnetism above its Curie temperature (~230°C).

   • Mechanical Strength:

     • Reasonably strong and ductile, but not as strong as some high-strength steels.

   • Corrosion Resistance:

     • Moderate corrosion resistance, but it may require protective coatings in aggressive environments.

   • Applications:

   • Scientific Instruments:

     • Telescope mirrors, clock pendulums, and other precision instruments.

   • Aerospace:

     • Components where thermal stability is essential, such as satellite and spacecraft structures.

   • Cryogenics:

     • Used in applications involving extreme cold due to its stable properties at low temperatures.

   • Electronics:

     • Shadow masks for CRT screens, precision electrical and electronic parts.

   • Molds for Composite Materials:

     • Used in manufacturing molds for carbon fiber and composite material production.

   • Measuring Devices:

     • Length standards and precise gauges.
     • 

       

       
        
       

       

       
       
        

 

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 is precision alloy?
Precision alloys refer to special alloys with high purity, uniformity and stability. They are usually used to manufacture parts or components that have extremely strict size, shape and performance requirements. They have special physical properties (such as magnetic, electrical, thermal, etc.) and chemical properties to meet specific engineering requirements.

2: What are the main types of precision alloys?
Precision alloys can be divided into many types according to their different physical properties, mainly including:
Magnetic alloys: Such as soft magnetic alloys and permanent magnetic alloys (hard magnetic alloys).
Elastic alloy: An alloy that can deform reversibly under certain stress or temperature conditions.
Expansion alloy: An alloy with a large linear expansion coefficient within a certain temperature range.
Thermal Bimetal: A composite material composed of two or more metallic materials that exhibit different thermal expansion properties.
Resistive Alloys: Alloys with stable resistivity and constant temperature coefficient of resistance.
Thermoelectric alloy: Alloy with thermoelectric effect.
Hydrogen storage alloy: An alloy with hydrogen storage function.
Shape memory alloy: Alloys with shape memory effect.
Magnetostrictive alloy: A type of metal material with magnetostrictive effect.

3: What are the main application areas of precision alloys?
 Precision alloys are widely used in aerospace, automobiles and trains, energy and chemicals, medical equipment, electronics industry, fasteners and other fields. For example, in the aerospace field, precision alloys are used to manufacture aircraft engines, aviation structural parts, missiles, etc.; in the automotive and train field, they are used to manufacture engines, transmission systems, chassis components, tracks, wheels, etc.

4: What is the production process of precision alloy?
The production process of precision alloys includes the selection and pretreatment of alloy raw materials, smelting and casting, heat treatment and processing technology, as well as surface treatment and performance testing. The entire production process requires precise control of each link to ensure that the composition and performance of the alloy meet the requirements.

5: How to detect the quality of precision alloy?
Quality testing of precision alloys is mainly through chemical analysis and physical property testing. Commonly used testing methods include spectral analysis, tensile testing, hardness testing and low-temperature impact testing to ensure that each batch of alloys can meet predetermined technical requirements.

6: What are the significant advantages of precision alloys?
 Advantages of precision alloys include:
Has unique physical properties, such as excellent electrical conductivity, thermal conductivity and magnetism.
Excellent mechanical properties, high strength, wear resistance and good elasticity.
Strong corrosion resistance and long service life.
Stable performance in a wide temperature range and wide application.
It has good processing performance and is easy to manufacture precisely.
The ingredients and organization are controllable to meet diverse needs.

7: What kind of performance does precision alloy show in a magnetic field?
 Magnetic alloys in precision alloys exhibit excellent magnetic properties in magnetic fields. For example, soft magnetic alloys have high magnetic permeability and low coercivity, are easy to demagnetize, and have low energy loss during cyclic magnetization, making them indispensable materials in electromagnetic equipment.

8. 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!