трубы из нержавеющей стали

stainless steel pipeASTM A312 and ASTM A778 DIMENSIONS AND WEIGHTS Nominal Pipe size (inch) Outside Diameter (mm) Schedule 10S Schedule 40S Nominal Wall Thickness (mm) Weight(kg/m) Nominal Wall Thickness (mm) Weight(kg/m) TP304/ TP304L TP316/TP316L TP304/ TP304L TP316/TP316L 3/8 17.15 1.65 0.637 0.641 2.31 0.854 0.859 1/2 21.34 2.11 1.011 1.017 2.77 1.281 1.29 3/4 26.67 2.11 1.291 1.299 2.87 1.702 1.712 1 33.40 2.77 2.113 2.217 3.38 2.528 2.544 11/4 42.16 2.77 2.718 2.735 3.56 3.423 3.445 11/2 48.26 2.77 3.139 3.159 3.68 4.087 4.113 2 60.33 2.77 3.392 3.997 3.91 5.495 5.530 21/2 73.03 3.05 5.317 5.351 5.16 8.724 8.780 3 88.90 3.05 6.522 6.564 5.49 11.407 11.480 31/2 101.60 3.05 7.487 7.535 5.74 13.706 13.764 4 114.30 3.05 8.452 8.507 6.02 16.237 16.342 5 141.30 3.40 11.679 11.754 6.55 21.986 22.127 6 168.28 3.40 13.964 14.054 7.11 28.545 28.728 8 219.08 3.76 20.167 20.297 8.18 42.974 43.250 ASTM A530 Permissible Variation Dimensions Dimension NPS Tolerance(mm) Outside Diameter (According to ASTMa999) 3/8to11/2 +0.4,-0.8 2to 4 +0.8,-0.8 5to 8 +1.6,-0.8Wall Thickness For ASTM 312 NPS Designator Tolerance,% fiommomal Over Under 1/8 to2-1/2 Inch, all t/D ratios 200 125 3 to 18 Inch ,t/D Up to5% 225 125 3 to18 inch, t/D 5% 150 125 Where t=Nominal wall thickness D=Nominal outside diameter of pipe ForASTM778 Tolerance=±125%ncminal