Astm A480 A480m Pdf 2021 Guide

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The revision numbering system follows ASTM conventions: the number after the dash indicates the year of approval, and lowercase letters (a, b, c) indicate multiple revisions within the same year. astm a480 a480m pdf

Many buyers assume a 0.250" plate is exactly 0.250". A480 allows for minus tolerances. For strip products, the tolerance varies by width. Always check Table A2.1 (inch-pound) or Table A2.1M (SI). This post is practical, actionable, and steers readers

| Specified Thickness (in) | Width ≤ 60" (in) | Width > 60–84" (in) | |--------------------------|------------------|----------------------| | 3/16 to < 3/8 | ±0.011 | ±0.012 | | 3/8 to < 3/4 | ±0.015 | ±0.016 | | 3/4 to < 1 | ±0.022 | ±0.024 | A480 allows for minus tolerances