Steel pipe schedule 40,steel pipe schedule 80,steel tube sch40?steel tube sch80,seamless steel tube sch40/sch80,1.material:a106/a53/api 5l gr.b. 2.size:1/2. Standard pipe schedule & inner dia dimensions (inches / metric) s ize od inch od mm schedule (sch) inches w.t i.d. metr c ( m) w.t i.d. 1/4 0.540" 13.7mm. Standard pipe dimensions nps od (inches) schedule designations (ansi/asme) wall thickness (inches) inside diameter (inches) weight (lbs./ft.) 1/8 0.405.
