Stainless steel is gauged by which system?

• A. False
• B. U.S. Standard Gauge
• C. Decimal Inch Gauge
• D. British Imperial Gauge

Answer: (B)

Thickness in sheet metal is specified using a standard gauge system. For stainless steel, the common system used is the U.S. Standard Gauge (Brown & Sharpe). Each gauge number corresponds to a specific thickness in inches, and as the gauge number increases, the material becomes thinner. This provided table lets you convert a gauge to an exact thickness quickly, which is essential for cutting, forming, and fitting parts.

Other options aren’t the standard for stainless steel in most shops. British Imperial Gauge is a different historical system, and Decimal Inch Gauge would just be measuring in inches directly rather than using a standardized gauge table. So the proper system used to gauge stainless steel is the U.S. Standard Gauge.