The VMT blog is dedicated to sharing our hard-earned knowledge in prototype manufacturing. We hope these articles will help you optimize your product designs and gain deeper insight into the world of rapid prototyping. Enjoy the read!
Get an Instant Quote
VMT
2025 08 19 The key difference between 6061 aluminum T6, T651, and T6511 is stress relief and dimensional stability. T6 is heat-treated and naturally aged, T651 is stress-relieved by stretching, and T6511 is stress-relieved by stretching and minor straightening. These differences affect machinability, performance, and cost for aluminum CNC machined parts.
66
Read more
VMT
2025 08 18 Iron comes in multiple forms—pure iron, pig iron, wrought iron, cast iron, stainless steel, carbon steel, alloy steel, tool steel, ductile iron, and gray cast iron. Each has distinct properties and applications. Understanding their differences ensures optimal material selection for construction, manufacturing, and CNC machined parts production.
66
Read more
VMT
2025 08 15 Metals that are magnetic include iron, cobalt, nickel, most steels, and certain rare earth metals. These materials exhibit ferromagnetism, meaning they are strongly attracted to magnets and can become magnets themselves.
66
Read more
VMT
2025 08 15 6061-T6 is heat-treated aluminum without stress relief, 6061-T651 is stress-relieved T6 for improved stability, and 6061-T6511 is stress-relieved with controlled straightness for extruded shapes. Choosing depends on dimensional tolerance needs, part size, and machining requirements.
66
Read more
VMT
2025 08 14 Yes, carbon steel is generally magnetic because it contains iron, a ferromagnetic material. Its magnetism depends on carbon content, crystal structure, and heat treatment. Most carbon steels used in CNC machining parts will strongly attract magnets, making them suitable for applications requiring magnetic properties.
66
Read more
VMT
2025 08 13 Titanium is not magnetic under normal conditions. It is a weakly magnetic (diamagnetic) metal, meaning it is not attracted to magnets. Its atomic structure prevents strong magnetic alignment, making it ideal for applications like medical implants, aerospace components, and precision CNC machined parts that require minimal magnetic interference.
66
Read more
VMT
2025 08 12 Brass is generally non-magnetic because it is an alloy of copper and zinc, both of which are non-ferromagnetic. However, trace impurities or mechanical processing can induce slight magnetism. To ensure non-magnetic performance in brass CNC machined parts, choose high-purity alloys and verify properties before production.
66
Read more
VMT
2025 08 11 Yes, iron is magnetic because it is a ferromagnetic metal. Its unpaired electrons and aligned magnetic domains make it strongly attracted to magnets. Pure iron and many iron-based alloys retain magnetism, but some stainless steels and high-temperature conditions can reduce or eliminate this property.
66
Read more
Ready To Start Your Next Project?
Get Instant Quote

Request a Free Quote
Send us a message if you have any questions or request a quote. We will get back to you ASAP!