The following table is given for guidance only and the grades of steel and limiting ruling sections listed here are not mandatory. Unless otherwise stipulated, the final choice of the materials used to provide the physical properties given in Appendix A will be left to the manufacturer (see Clause 2).
| Grade | Width across flatsa | Material to BS 970b |
|---|---|---|
| A | Up to and including 1½ in | EN 1A |
| Up to and including 3 in | EN 7A | |
| B | Up to and including 3 in | EN 3B |
| P | Up to and including 1¾ in | EN 7 |
| Up to and including 3 in | EN 8 | |
| S | Up to and including 2½ in | EN 18S |
| Up to and including 3 in | EN 16S | |
| T | Up to and including 2½ in | EN 16T |
| Up to and including 3 in | EN 17T | |
| V | Up to and including 2½ in | EN 24V |
| Up to and including 3 in | EN 25V | |
| EN 26V | ||
| X | Up to and including 1⅛ in | EN 24X |
| Up to and including 2½ in | EN 25X | |
| Up to and including 3 in | EN 26X | |
|
a Limiting ruling section. |