... 20" ,Tubing from 2 3/8" to 4 1/2 ",and the other Steel pipe and Pipeline is from 1/2 " to 30" ... pipe.The steel pipe we can hold OD from1/2”- 30”,Wall-thick is from SCH5-SCHXXS.Standard:ASME B36.10M-1996 ... 20" ,Tubing from 2 3/8" to 4 1/2 ",and the other Steel pipe and Pipeline is from 1/2 " to 30" ... pipe.The steel pipe we can hold OD from1/2”- 30”,Wall-thick is from SCH5-SCHXXS.Standard:ASME B36.10M-1996 ...