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Key Steel<br />
Key steel in an unalloyed medium carbon steel. It is<br />
supplied bright drawn in square and flat bar to tolerances<br />
as stipulated in BS46.<br />
Size Range:<br />
Flats (Metric mm) 8 x 7, 10 x 8, 12 x 8, 14 x 9,<br />
16 x 10, 18 x 11, 20 x 12, 22 x 14,<br />
25 x 14,28 x 16, 32 x 18, 36 x 20.<br />
Flats (Imperial") 1⁄2 x 3/8, 3⁄4 x 1⁄2, 1 x 3⁄4, 1.1/4<br />
x 7/8<br />
Squares (Metric mm) 4, 5, 6, 8, 10, 12<br />
Squares (Imperial”) 1/8, 3/16, 1⁄4, 7/16, 5/8, 3⁄4, 1<br />
45