VIM VAR Core Iron, also known under various designations including UNS K94280, DIN 1.1010, BS 970-1, and EN 10106, is a high-quality, low-carbon iron material produced using the Vacuum Induction Melting (VIM) and Vacuum Arc Re-melting (VAR) processes. These processes enhance its purity and performance characteristics, making it ideal for applications requiring high dimensional stability and mechanical properties.

VIM VAR Core Iron is primarily composed of iron with very low carbon content. The VIM and VAR processes remove impurities and ensure a uniform structure, resulting in a material with excellent machinability, high strength, and good magnetic properties. It is widely used in applications that demand high precision and reliability.

VIM VAR Core Iron Sheet | Plate

VIM VAR Core Iron sheets and plates are available in various thicknesses and sizes, offering high dimensional stability and surface quality. These products are commonly used in precision engineering applications, including aerospace components, high-performance machinery, and tools requiring a high level of flatness and stability.

VIM VAR Core Iron Round Bar | Rod

VIM VAR Core Iron round bars and rods come in various diameters and lengths, suitable for machining into custom parts. These components are used in applications where dimensional accuracy and strength are critical, such as in high-precision mechanical parts and structural components.

VIM VAR Core Iron Strip | Coil

Available in flexible strips and coils, VIM VAR Core Iron is used for applications requiring materials to be bent or formed. These forms are beneficial in producing parts like precision springs, washers, and other components where high dimensional stability and flexibility are required.

VIM VAR Core Iron Applications

• Soft magnetic components where vacuum integrity is needed such as power tubes and microwave devices, in addition, relays, solenoids, and magnetic pole pieces for scientific instruments.

VIM VAR Core Iron Properties

• Coefficient of Thermal Expansion: Approximately 11.0 x 10^-6 /°C, indicating moderate expansion characteristics suitable for precision applications.
• Density: Around 7.8 g/cm³, providing a balance of strength and weight for various industrial applications.
• Thermal Conductivity: Approximately 50-60 W/m·K, offering good heat conduction while maintaining dimensional stability.
• Magnetic Properties: Generally exhibits good magnetic permeability, making it useful for applications where magnetic properties are important.
• Mechanical Properties: VIM VAR Core Iron provides high strength and excellent machinability, making it suitable for precision components and structural parts.

Machining VIM VAR Core Iron

• Cutting: VIM VAR Core Iron can be cut using conventional tools. Sharp tools and proper cutting speeds should be used to achieve clean cuts and prevent tool wear.
• Drilling: Drilling VIM VAR Core Iron is straightforward with high-speed steel (HSS) drills or carbide-tipped bits. Proper lubrication and cooling help to maintain drill life and ensure accurate holes.
• Turning: Carbide inserts are recommended for turning VIM VAR Core Iron. Consistent feed rates and effective heat management are important to maintain dimensional accuracy.
• Milling: Conventional milling techniques work well with VIM VAR Core Iron. Carbide end mills and cooling fluids should be used to manage heat and prevent dimensional changes during milling.
• Grinding: Grinding VIM VAR Core Iron is effective for achieving tight tolerances and fine surface finishes. Use appropriate abrasive wheels and coolant to ensure a high-quality finish and preserve dimensional stability.

Chemical Composition

• Carbon (C): Max 0.020%
• Manganese (Mn): Max 0.35%
• Silicon (Si): Max 0.15%
• Phosphorus (P): Max 0.030%
• Sulfur (S): Max 0.025%
• Chromium (Cr): Max 0.20%
• Nickel (Ni): Max 0.15%
• Vanadium (V): Max 0.10%
• Titanium (Ti): Max 0.10%
• Aluminum (Al): Max 0.10%
• Iron (Fe): Balance