Allowable Stresses for Pipe and Tube B36.10M

Steel pipe is manufactured by several processes. Seamless pipe (Type S), made by piercing or extruding, has no longitudinal seam. Other manufacturing methods roll a strip or sheet of steel (skelp) into a cylinder and weld a longitudinal seam. A continuous-weld (Type F CW) furnace butt-welding (BW; i.e., welding pipe in a single plane) process forces and joins the edges together at high temperature. An electric current welds the seam in electric-resistance-welded (Type E ERW) pipe. ASTM standards such as A53 and A106 specify steel pipe A and B grades. The A grade has a lower tensile strength and is
not widely used.

The ASME pressure piping codes require that a longitudinal joint efficiency factor E (Table 1) be applied to each type of seam when calculating the allowable stress. ASME Standard B36.10M specifies the dimensional standard for wrought steel pipe.

Table 1 - Allowable Stresses^a for Pipe and Tube Table

^aListed stresses are for temperatures to 650°F for steel pipe (to 400°F for Type F) and to 250°F for copper tubing.
^bTo be used for internal pressure stress calculations in Equations (10) and (11).
^cTo be used only for piping flexibility calculations; see Equations (12) and (13).

Related:

• Thermal Expansion of Metal Pipe
• Pipe Support Hanger Spacing and Pipe Wall Thickness
• Copper Tubing Size Chart ASTM B-88
• Pressure Drop Along Pipe Length - Fluid Flow Hydraulic and Pneumatic
• Pipe Friction Equations Within Pipe For Fluid Flow
• Straight Pipe Threads Table Chart ANSI
• Double Xtra Strong (XXS) Size Steel Pipe Weights Calculator

References