Standard Pipe
Grade B: Yield — 35,000 psi [240 MPa] minimum; Tensile — 60,000 psi [415 MPa] minimum. OD OVER UNDER Outside Diameter NPS ½ to 1 ½; DN 6 to 40 1/64 (0.4 mm) 1/64 (0.4 mm) NPS 2 and up; DN 50 and up 1% 1% Wall Thickness at Any Point — — 12.5% Weight — 10% 10% PERMISSIBLE VARIATIONS — ASTM A53 GRADES A …