... 5,500mm 2) Standard: ASME, ANSI, API, JIS, JPI, DIN, UNI, BS, AS 3) Pressure Vessel Forging, Shaft Forging Slip On Flanges - ANSI ... .Class150,300,600, 900, 1200, 1500,2500.Size1/4" to 48" Carbon Steel Flanges SpecificationASTM A 105DimensionANSI B 16.5Grade RangeSORF, BLRF ... , WNRF, SCREWED.Class150, 300, 600, 900, 1200, 1500,2500.Size1/4" to 48" asme b 16.47 carbon steel forged flange