ER309L Rod

ER309/309L  is very similar to type 309 except for the carbon content being lower than .03%.  The extra low carbon content provides good resistance to carbide precipitation and intergranular corrosion. AWS Specification AWS A5.9/A5.9M:2006 AWS Classification ER309 309L Welding Current MIG-DCEP TIG-DCEN Typical Wire Chemistry C 0.03 Cr 23.0-25.0 Ni 12.0-14.0 Mo 0.75 Mn 1.0-2.5 Si 0.30-0.65 P 0.03 S 0.03 Cu 0.75 Typical Mechanical Properties (As Welded) Yield Strength, kpsi 58* Tensile Strength, kpsi 86* Elongation%, min 40* *AWS Requirement, Not Specified Welding Positions F,V,OH,H   Typical Welding Parameters Diameter Process Volt Amps Shielding Gas in (mm)  .035  (0.9) GMAW  22-23 180-210 Spray transfer 98% Argon/2% Oxygen  .045  (1.2) GMAW  23-25 195-260  Spray transfer 98% Argon/2% Oxygen  1/16  (1.6) GMAW  25-28 260-390  Spray transfer 98% Argon/2% Oxygen  .035  (0.9) GMAW  19-23 55-170  Short Circuiting Transfer 90% Helium/  7 ½% Argon / 2 ½% CO2  .045  (1.14) GMAW  19-23 100-185 Short Circuiting Transfer 90% Helium/  7 ½% Argon / 2 ½% CO2  .035  (0.9) GTAW  12-15 60-100  100% Argon  .045  (1.14) GTAW  13-16 70-120  100% Argon 1/16 (1.6) GTAW 14-16 90-130 100% Argon  3/32  (2.4) GTAW  15-20 120-175  100% Argon  1/8  (3.2) GTAW  16-20 150-220  100% Argon