api 5000api 6a - type - 6b 34.5 mpa (5000 psi) gbt 22513-2013 API 6A-TYPE-6B 34.5MPA (5000PSI)API 6A - Type - 6B 34.5 MPA (5000 psi) API 6A - Type - 6BX 13.8 MPA (2000 psi)