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J911 - Surface Roughness and Peak Count Measurement of Cold-Rolled Sheet Steel

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Document Number: J911
Project Initiation: 01-15-2014
Sponsor Name: Alan Darrell Pearson
Title
Surface Roughness and Peak Count Measurement of Cold-Rolled Sheet Steel
Scope
This SAE Recommended Practice describes a method for measuring roughness average (R<sub>a</sub>) and Peak count (PC) of the surface of cold-rolled steel sheet.<p>The method includes a system for equipment configuration, calibration, and procedures for determining average surface roughness, R<sub>a</sub> (μ or μin), and average peak count, PC (peaks per cm or peaks per inch) on cold-rolled steel sheet surfaces.
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