... ASTM B337: 1.Standard:ASTM B338,ASTM B337,ASTM B265,ASTM B 861, 2.seamless tube OD:<114,WT:<7mm Titanium Pipe as per ASTM B337:1.Application: environmental protection equipment, cooling tube ... : ASTM B338, ASTM B337, ASTM B265, ASTM B 861, JIS H4631 etc.3.Grade: Gr1, Gr2, Gr7, Gr9, Gr12, TH340, TTH480, TTH340 etc.4.Seamless tube:OD: 6-114mm ...