[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR56.35-1]

[Page 192]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 56_PIPING SYSTEMS AND APPURTENANCES--Table of Contents
 
            Subpart 56.35_Expansion, Flexibility and Supports
 
Sec. 56.35-1  Pipe stress calculations (replaces 119.7).


    (a) A summary of the results of pipe stress calculations for the 
main and auxiliary steam piping where the design temperatures exceed 800 
[deg]F shall be submitted for approval. Calculations shall be made in 
accordance with one of the recognized methods of stress analysis 
acceptable to the Marine Safety Center to determine the magnitude and 
direction of the forces and movements at all terminal connections, 
anchor and junction points, as well as the resultant bending stress, 
longitudinal pressure stress, torsional stress, and combined expansion 
stress at all such points. The location of the maximum combined stress 
shall be indicated in each run of pipe between anchor points.
    (b) Special consideration will be given to the use of the full 
tabulated value of S in computing Sh and Sc where 
all material used in the system is subjected to additional 
nondestructive testing as specified by the Marine Safety Center, and 
where the calculations prescribed in 119.6.4 and 102.3.2 of ANSI-B31.1 
and Sec. 56.07-10 are performed. The nondestructive testing procedures 
and method of stress analysis shall be approved by the Marine Safety 
Center prior to the submission of computations and drawings for 
approval.

[CGD 77-140, 54 FR 40607, Oct. 2, 1989]