Enter the applicable factor as determined by the following piping codes.
Stoomwezen
Enter 0.44 or 0.5. This value is used to compute the equilibrium stresses as discussed in Section 5.2 of the code. You can use 0.5 for steel if the design and fabrication are such that stress peaks are avoided.
Norwegian
Enter the material ultimate tensile strength at room temperature Rm. If you do not define a value, this factor is not considered to control the expansion stress allowable.