... 2-1/2 incl., all t/D ratios2012.53 to 18 inch., t/D up to 5% incl.22. ... to 18 inch., t/D>5%1512.520 and larger, welded, all t/D ratios17.512.520 and larger ... .520 and larger, seamless, t/D>5%1512.5Note: t = Nominal Wall Thickness; D = Ordered Outside DiameterTolerances in Outside ... .58mm, 219*12.7mm, 219*20.62mmSuzhou Tianwo Technology Limited Liability Company--GB 13296-2013 TP304 TP304H Stainless Steel ...