... X60/X80/X100 STD:Standard: API 5L Grade: PSL1 / PSL2 TypeApplicationStandardMaterialalloy steel pipeit is used in petroleum,chemical,electric power ... exchanger pipelineASTM A333A333 GR6steel pipe forhigh-pressure boilerUsed in manufacturing by high pressure boiler tube,the collection box ... X46,X52,X56,X60,X65,X70,X80ERW STEEL PIPEUsed in general structure stents, low voltage liquid transportation, ...