SAE1020 smls honed tube(ID Honed&OD Chrome Plated 1. Factory sell 2. OD: 10-630mm 3. ASTM,DIN ... : 27~426mm Length: 5.8~13m(as your requirment) Material: 20#, 45#, 16Mn, Q195, Q235, Q345B, 30CrMo, 42CrMo Standard: ASTM- ... WT4-80mm. The materials of the products are as follows:20#,45#,16M, 27SiMn,15CrMo,30CrMo,34CrMo4,12Cr1MoV,J55,K55, N80 ... .cnxinglong.cn SAE1020 smls honed tube(ID Honed&OD Chrome Plated