One of Many Stainless Steel shapes – Stainless Steel Coils

Stainless steel coil refers to steel coil wire forms. Stainless steel is a steel alloy, seldom called inox or inox steel. About 10.5% chromium by mass, stainless steel comes with considerable strength and anti-corrosive properties. That is why it found countless uses in a variety of industries. These include automotive, aerospace, marine, health and medicine, military and defense, construction, architecture, sports, recreation, offices, food and beverage processing, and much more.


Main features of the stainless steel coil are given in the following:

  • These are highly resistant to high temperatures, steam, and corrosion, and other environmental factors.
  • These are anti-fouling, not easy to stain, antioxidant.
  • Highly durable, reducing maintenance time and cost-saving.
  • The Wall surface is smooth and thickness 50-70% of the brass.
  • Overall thermal conductivity is higher than copper pipe.

To produce a stainless steel coil, industrialists put the raw form of stainless steel through the milling process. So this procedure gave the name to the place where it is done as a steel mill. They use machining tools to mill semi-finished casting products from steel. Rotary cutters are used in the tools to remove impurities from the surface of a steel piece. Multiple cutting points are present on these cutters working perpendicular to the axis of the workpiece.

Opposite to any sharp cutting through a blade, rotary cutters work by making tiny cuts to push the workpiece’s cutting material. Basically, the milling machine work process is deformation. Ranging from mini-mills to large ones, milling machines are available in various configurations. Many heavy-duty gang milling systems may work with or without CNC technology. However, milling with CNC  technology is more preferred as CNC machines help work more efficiently, allowing more complexity, many repeats, and working with greater volumes.

The most common and popular use of stainless steel coils is the formation of springs. A combination of cold rolling and lathe forming is used to create springs with a stainless steel coil. Firstly, the manufacturers start with cold rolling. For this, manufacturers load the stainless steel coil into a roll forming machine consisting of a series of roller die parts called calendars.

To form the right stainless steel coils, the calendars are placed above and below. When stainless steel is passed through the machines, the calendars bend it on a linear axis. It gives a more uniform grain flow and shapes into flat coil strips.

It is necessary to tell the manufacturers your desired specifications. To protect your product, they may suggest the right coating product with a protective finishing layer.

Stainless steel coil may be coated with zinc, Iridite, Passivate, and black oxide. Manufacturers will gladly do other things like cutting coils to length, construct coils with desired degrees of flexibility or thickness, or both, producing coils to exact gauge strength to meet your exact specifications.

Moreover, the best manufacturer will surely construct your stainless steel coils to exactly meet the stringent requirements of standards that are mostly set out via groups like ASTM.

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Christophe Rude

Christophe Rude

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