OD:108mm to 508mm WT:3mm to 20mm standard:GB,ASTM,JIS,DIN,API5L,API5CT steel grade:ASTM A106,A53,X42,X52,X60,PSL1 SIZELinear Masslb/ftWall ThicknessMATERIALSTANDARDinchmminchmm4 1/2”114.39.5-15.100.205-0.3375.21-8.56 API J55,K55,X42-80,L80,N80,PSL1,PSL2 API5L,API5CT ASTM JIS, DIN, GB5”127.011.50-24.100.22-0.505.59-12.75 1/2”139.714.0-43.10.244-0.8756.20-22.236 5/8”168.2820.0-32.00.288-0.4757.32- ...