... Outside Diameter: 4.5inch-20inch Wall Thickness: 5.21mm-15.88mm Length: Standard: API 5CT,API 5DP Steel Material: K55 ... P,Q 10.54 YES YES 168.28(6 5/8") 20.00 H,J,K 7.32 YES YES ... C,L,N,P,Q 15.11 219.08(8 5/8") 24.00 J,K 6.71 YES 28.00 ... YES 298.45(11 3/4") 42.00 H 8.46 YES 47.00 J,K,M 9.53 ... 12.42 YES YES 339.7(13 3/8") 48.00 H 8.38 YES 54.50 J,K 9.65 ... ,M 12.57 YES YES 473.08(18 5/8") 87.50 H,J,K,M 11.05 YES ...