... -1020x1.5-100mm as customized Article: alloy steel pipeSpecification of alloy steel pipe: ItemStandardGradeSize(mm)Length(mm)Low and ... medium pressure boiler tubeGB3087-200810,2010-530*2- ... ,15MoG,20MoG,12CrMoG,15CrMoG,12Cr2MoG,12Cr1MoVG14-630*2-804000-13500Structural pipeGB/T8162-200810,15,20, ... *1.0-403000-13500Pictures of alloy steel pipe: