[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR230.25]



[Page 424]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 230_STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS--Table 

of Contents

 

                   Subpart B_Boilers and Appurtenances

 

Sec. 230.25  Maximum allowable stress on stays and braces.



    The maximum allowable stress per square inch of net cross sectional 

area on fire box and combustion chamber stays shall be 7,500 psi. The 

maximum allowable stress per square inch of net cross sectional area on 

round, rectangular, or gusset braces shall be 9,000 psi.



                          Strength of Materials