ASTM F1554 covers three grades of anchor rods: Grade 36 (248 MPa), Grade 55 (380 MPa) and Grade 105 (724 MPa). The vast majority of anchor rods (as defined in CSA S16-14) are used to position, level and secure base plates for concentrically loaded gravity columns. Note: The expression “anchor rod” has replaced “anchor bolt” in [...]
Designers must consider material availability when specifying section sizes, particularly for the heavier sizes in a nominal size range, and for small quantities of the less commonly used sizes. As regional availability of steel products varies, information on the availability of particular sizes can be obtained from either local steel fabricators, producers, and service centres. The [...]
A325 and A490 bolts are household names. What are F1852 and F2280? ASTM A325 AND A490 BOLTS are the high-strength bolts used for structural applications in North America. Their twist-off type counterparts are F1852 and F2280, respectively (Figure 1). ASTM standards A325M and A490M cover the metric versions (although metric bolts are rare). Generally, bolt [...]
Special Topic – Advantage Steel Issue No. 52Over the last two decades, the advent of modern steelmaking technology has economically raised the strength levels of common structural steel products...
In 2014, the largest producer of channels and angles in Canada, Gerdau Corporation, introduced its new GGMULTI product...