Structural Shapes - Nucor-Yamato Steel
Structural Shapes - Nucor-Yamato Steel
Structural Shapes - Nucor-Yamato Steel
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Rolling Practice and Rolling Tolerances Universal mills are used for<br />
rolling W, S, C, MC, S, L and HP shapes. The thickness of the flange and the web may be<br />
changed with corresponding changes in the beam depth and flange width. The thickness of the<br />
web may be changed with a corresponding change in the flange width. All other dimensions<br />
remain unchanged.<br />
In the production of structural shapes, the dimensions and weights may vary slightly from the<br />
published nominal figures. However, they remain within the permissible tolerance.<br />
Roll wear may also slightly affect the radii of fillets and rounded edges. So please make proper<br />
allowances for fittings and connections.<br />
Roll wear, along with deformation in the mill and the plasticity of hot steel may also cause<br />
variations from the published dimensions of rolled structural shapes. Therefore, to meet camber<br />
or sweep tolerances, they may need straightening by the producer. Other tolerances are subject<br />
to negotiation with <strong>Nucor</strong>-<strong>Yamato</strong> <strong>Steel</strong>.<br />
<strong>Nucor</strong>-<strong>Yamato</strong> steel produces steel to tolerances provided by ASTM A6 most recent revision.<br />
Column tolerances applies to camber and sweep on following sections when specified at the time<br />
of order entry as columns:<br />
W8x8 (31 lbs/ft to 67 lbs/ft)<br />
W10x10 (49 lbs/ft to 112 lbs/ft)<br />
W12x12 (65 lbs/ft to 336 lbs/ft)<br />
W14x14 ½ (90 lbs/ft to 132 lbs/ft)<br />
W14x16 (145 lbs/ft to 730 lbs/ft)<br />
Surface Finishes And Conditioning Surface imperfections on the finished<br />
product are caused by a number of factors. However, they are generally of minor importance<br />
and have no effect on the end use.<br />
Fins or burrs are common with commercial sawing or shearing. And the presence of grease, oil,<br />
mill scale or rust is unavoidable. It is a natural occurrence in the rolling and storing of all<br />
structural shapes.<br />
Our products may be conditioned in accordance with ASTM Specification A6/A6M, latest<br />
edition.<br />
May 2013 General Notes - 4 <strong>Nucor</strong>-<strong>Yamato</strong> <strong>Steel</strong>