... arc 4.free sample 5.factory supply Stainless Steel Welding Wires series:ER304,ER308,ER308L,ER309,ER309L,ER316,ER316L,ER410,ER420 ... Wire Mode(mm)DiameterShielding GasChemical Composition of Deposited Metal(%)CSiMnPSCrNiMoCuER3080.6-4.0Ar+0.5-2%CO20.080.3-0.651 ... .030.0319.5-22.09.0-11.00.750.75ER308LSI0.6-4.0Ar+0.5-2%CO20.030.65-1.01 ... 030.0323.0-25.012.0-14.00.750.75ER309L0.6-4.0Ar+0.5-2%CO20.030.3-0.651 ...