... 4.ideal percentage elongation 5.good mechanical property seamless schedule 40 pipe1)Suitable for conveyance of gas, petroleum, liquid, and electricity ... galvanized C: Length of each pipe: 500mm-16,000mm D: Steel grade: st35,st35.8,st37,st37.4,st45,st52,SAE ... all details, please never hesitate to contact us. seamless schedule 40 pipe