Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Does “mil” mean millimeter?

April 26, 2017mean mil millimeter

0

Posted

Does “mil” mean millimeter?

1 Answer

0

Posted

No. Mil is an industry term used to describe the thickness of copper sheeting. The lower the “mil” number the thinner the copper sheet. For example 1 mil copper foil is thinner than 1.4 mil copper foil , 8 mil copper sheet is thinner than 10 mil copper sheet and so on.. The thickness of copper sheeting is also often identified by “gauge.” In terms of gauge, the lower the gauge number, the thicker the copper sheet is. So 36 gauge (5 mil) copper foil is thinner than 30 gauge (10 mil) copper sheet and 30 gauge (10 mil) copper sheet is thinner than 26 gauge (16 mil) copper sheet. Sometimes the thickness of copper is referred to by its thickness in inches and how many ounces it weighs per square foot. So 5 mil copper foil is often referred to .005″ and 10 mil as .010″ and 16 mil as .016″. 16 mil/26 gauge copper sheet is also referred to as 12 oz. copper sheet and .0216″ (24 gauge) copper sheet is often referred to as 16 oz. copper.