A36 Chemical Requirements
| Thickness, inches | Up to 3/4" | Over 3/4" to 1-1/2" | Over 1-1/2" to 4" | Over 4" |
|---|---|---|---|---|
| Carbon, max % | 0.26 | 0.27 | 0.28 | 0.29 |
| Manganese, % | 0.60 - 0.90 | 0.60 - 0.90 | 0.60 - 0.90 | |
| Phosphorous, max % | 0.04 | 0.04 | 0.04 | 0.04 |
| Sulfur, max % | 0.05 | 0.05 | 0.05 | 0.05 |
| Silicon, max % | 0.40 | 0.40 | 0.40 | 0.40 |
| Copper, min % when copper is specified | 0.20 | 0.20 | 0.20 | 0.20 |
| This abridged table shows only the chemical requirements for bars. The complete table including shapes and plates can be found in the ASTM standard at www.astm.org | ||||