Flatness Reference Guide for ASTM A36 | Precision Grinding, Inc.

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Flatness Reference Guide for
ASTM A36 Stress Relieved Plate

Plate Burning

Plate Burning Table

A36 steel is a standard steel alloy that is a common structural steel in the United States. The A36 standard was established by the standards organization ASTM International. If flatness is critical, please contact our sales team. Several factors may affect flatness – thickness, shape, grade and others. This flatness guide is for reference only.

Each piece of metal has its own uniqueness.

For A36 steel general information, visit A36 Steel Plate.

Stress Relieved Material

Gauge Blanchard Grind Surface Grind
below 1/2″ call our sales team call our sales team
1/2″ to 13/16″ .006/ft .003/ft
7/8″ to 1 7/16″ .004/ft .002/ft
1 1/2″ to 1 15/16″ .003/ft .002/ft
2″ to 3 15/16″ .002/ft .0015/ft
4″ to 6″ .001/ft .001/ft
over 6″ .001/ft .001/ft


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