| Cold Rolled Strip Steel Physical Properties | |
|---|---|
| ASTM A109 | |
| Temper | Bend Test Requirement |
| No. 1 Hard | Not required to make bends in any direction |
| No. 2 Half-Hard | Bend 90 degrees transverse around a radius equal to that of the thickness. |
| No. 3 Quarter-Hard | Bend 180 degrees transverse over one thickness of the strip and 90 degrees longitudinal around a radius equal to the thickness. |
| No. 4 Commerical Quality | Bend flat upon itself in any direction. |
| No. 5 Dead-Soft | Bend flat upon itself in any direction. |
| Cold Rolled Strip Steel Physical Properties | ||||
|---|---|---|---|---|
| Temper | Thickness | Rockwell Hardness | ||
| Range | Minimum | Maximum (approx) | ||
| No. 1 - Hard | 0.025 | 15T90 | **** | |
| 0.040 - 0.025 | 30T76 | **** | ||
| 0.070 - 0.040 | B90.0 | **** | ||
| 0.300 - 0.07 | B84.0 | **** | ||
| No. 2 Half-Hard | 0.025 | 15T83.5 | 15T88.5 | |
| 0.040 - 0.025 | 30T63.5 | 30T73.5 | ||
| 0.300 - 0.040 | B70.0 | B85 | ||
| No. 3 Quarter-Hard | 0.025 | 15T80 | 15T85 | |
| 0.040 - 0.025 | 30T56.5 | 30T67 | ||
| 0.300 - 0.040 | B60 | B75 | ||
| No. 4 Skin-Rolled | 0.025 | *** | 15T82 | |
| 0.040 | *** | 30T60 | ||
| 0.300 | *** | B65 | ||
| No. 5 Dead-Soft | 0.025 | *** | 15T78.5 | |
| 0.040 - 0.025 | *** | 30T53 | ||
| 0.300 - 0.040 | *** | B55 | ||
