VI CAMBRIA STEEL. 



GENERAL INFORMATION. 



Our products are principally steel, made by the Bessemer or 

 Open Hearth process, as required, and of all qualities from the 

 softest rivet stock to high carbon special spring material. 



Our Beams and Channels are made to conform to the American 

 Standards, adopted January, 1896, In which the flanges have a 

 uniform slope of one to six, and the dimensions, proportions and 

 weights are determined by a regular schedule, as shown on the 

 diagrams on pages 28 and 29. The standard proportions of 

 beams and channels are further shown on page 27. 



The principal structural angles now made are limited in num- 

 ber to conform to the American Standards, as revised May 21, 

 1910, and include eight base, or a total of fifty-four sizes for equal 

 leg angles, and nine base, or a total of fifty-seven sizes of unequal 

 leg angles, all varying in thickness by one-sixteenth inch, as shown 

 on pages 17 and 18 and tables herein. It is believed that these 

 standard angles include a sufficient range of sizes to meet all usual 

 structural requirements, but, at the same time, we will continue 

 the manufacture of angles of special sizes and proportions for 

 those who require them, as shown on page 19. 



The weights of angles, now given, are those adopted as Amer- 

 ican Standards in May, 1910. 



The standard ship sections adopted November 20, 1918, com- 

 prising ship channels, bulb angles and one Z-bar hatch section 

 are now shown and tabulated herein for the first time, and these 

 standards also include certain equal leg and unequal leg angles, 

 which were adopted on the same date, as standards for ship 

 building, all of which are shown and indicated herein by a dagger. 

 Although the drawings of standard structural sections herein 

 show the minimum sizes, the drawings of standard bulb angles 

 and ship channels are made to indicate the sizes of tha British 

 standard sections, which form the basis of these ship section 

 standards. 



During the time when rolls are being prepared for the new 

 ship channels and bulb angles, our older sections of these shapes 

 shown herein will be furnished, but as the new rolls become ready, 

 the standard sections will be supplied and the prior shapes will 

 be obsolete. 



The method of increasing the sectional area of shapes from the 

 minimum "or base sizes to intermediate and maximum sizes, is 



