... of carbon steel teeTee TypeEqual tee, reducing tee,lateral tee, BW/butt weld tee, TH/threaded tee, SW/socket weld tee, seamless teeStandardASME B16.9 ... alloy steelCarbon steel tee, stainless steel tee, alloy steel teeASTM A234 WPB,ASTM A420 WPL6, WPL3;ASTM A105 WPB;ASTM A106;ASTM ... F 304, 304L,316, 316L,904LASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5, A234 WP9A420 WPL8, A420 WPL9ASTM A335 P5, P9 ...