PROPERTIES OF STRUCTURAL METALS. 49 



toward standardization, tentative acceptance of some important 

 changes in the present Manufacturers' Standard has been pre- 

 sented and is meeting with favor from those interested. 



The most important of the changes made relates to the adop- 

 tion of a single standard grade of structural steel for all purposes 

 of 60,000 Ibs. tensile strength, with an allowable variation of 

 5000 Ibs. either way, and the omission of any requirement as 

 to reduction of area and elastic limit. It is also strongly urged 

 that more importance should be given to cold-bend test, either 

 plain or nickelled, of full-sized sections. The outcome of this 

 movement will be watched with interest. 



