Conversion Charts

The following Conversion Charts provide useful steel related information and references for products we regularly stock.

Hardness Conversion Charts

Click here to view and print a handy hardness conversion chart which includes conversions for Rockwell C (HRc), Rockwell A (HRa), Brinell (Bhn), Vickers (Hv), Scleroscope.  Also includes approximate tensile strength values.

Millimeter to Inch Conversion Charts

Click here to view and print our mm to inch conversion chart w/ decimal to fraction equivalents.

Northlake hardness conversion charts

Northlake mm to inch conversion charts