... tee Standards ASME B16.9-2007 ASME B16.25-2007 ASME B16.5-2007 EN10253-1-1999 ... ANSI B16.9. Seamless Equal Crosses, ASTM A234 WP5, 10 X 10 Inch, SCH 80, Butt Welded Ends, ANSI B16.9. ... WPB for Alternative. ASTM A234 WPB Pipe Cross, Diameter 10 Inch, Wall Thickness Schedule 40, Butt Welded Connection. ... ASTM A234 WPB, ANSI B16.9, WT 19.05 x 10.31mm. Equal Tees, Butt Welded Ends, Size DN500, ...