api5000API 6A Type 6BX 5000 PSI Weld Neck Flanges are generally used in hh pressure applications, where hot or cold temperatures exist. These steel API 6A weld neck flangesAPI 6A - TYPE - 6BX 34.5 MPA (5000 PSI) Size OD C E1 G K T J1 J4 R BC N H Ring Number BX 13 58˝ 675 6 14.3 408.00 457 112.8 481.0 23.9 16 590.60 16 45