Inner and Outer Coil Diameter
(ID and OD)
A coil’s inner diameter can be made anywhere between 20" to 24". If core inserts are used, then only 20" and 24" diameters are readily available. If a different size core insert is desired, then it should be discussed with a Customer Service Representative. If ID specifications are not provided, then non-core 20" ID coil is supplied. As for a coil’s outer diameter, it may not exceed either 56" or a weight of 20,000 lbs.

NOTE: 50" OD max. on degreased coil.

Rewind Direction - Burr Inward or Outward
With the ability to coil material with the hole burr either on the outside or inside, burr direction is dependent on the customer’s specification. If not specified, Diamond standard rewind is to have the burr facing inward.

Length / Splicing
Because raw material varies in weight, if a specific coil length is required, it can only be guaranteed if splicing is allowed. Diamond’s standard splicing procedure is to tape two overlapping ends together. If splicing is not
permissible, then the desired length
is aimed for, but not guaranteed. Unless otherwise specified, Diamond Manufacturing Company may splice material with
different heat numbers.

Degreasing
Lubricants are used only when perforating metal to reduce friction in processing and may serve as a rust inhibitor. Depending on the metal type, lubricants may be either oils or water soluble solutions. Unless degreased, they can range from a light to a heavy concentration. In the event the metal is degreased, Diamond Manufacturing Company is not responsible for any surface corrosion that may occur.