API, API 5CT, API 5L, API 5DP, JIS G3463-2006, JIS G3444-2006, ASTM A106-2006, ASTM A213-2001, ASTM A312-2007, ANSI A213-2001, ANSI A312-2001, ANSI A210-1996, GB 3087-1999, GB 13296-2007, GB 18248-2000, DIN 1626
Grade
API J55-API P110, API J55, API K55, API N80, API L80, API P110, Q195-Q345, Q215, A53-A369, A53(A,B), A106(B,C), A312, A335 P91, A335 P1, A213, 10#-45#, 10#, 20#