ER320LR
Alloy Type: A5.9, STAINLESS STEEL Bare, Cored and Stranded Electrodes
ER320LR has a composition similar to type 320, except that carbon, silicon, phosphorus and sulfur levels are kept at lower levels as well as the columbium and manganese being specified at a narrower range. The low melting residuals are limited in this alloy to reduce the possibility of microfissuring.
Typical Applications: used for welding type 320 stainless steels
| AWS Class: ER320LR | Certification: AWS A5.9/A5.9M:2006 |
| Alloy: ER320LR | AWS/ASME SFA A5.9 |
| Welding Position: F, V, OH, H | Current:
MIG-DCEP TIG-DCEN |
| Tensile Strength, ksi: | 86* |
| Yield Strength, ksi: | 58* |
| Elongation %: | 35* |
*AWS Requirement, Not Specified
Typical Wire Chemistry as per AWS A5.9 (single values are maximum)
| C | Cr | Ni | Mo | Mn | Si | P | S | Nb | Cu
8XC min/0.40 max |
| 0.025 | 19.0-21.0 | 32.0-36.0 | 2.0-3.0 | 1.5-2.0 | 0.15 | 0.015 | 0.02 | 3.0-4.0 | 0.75 |
| 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 | (1.2) | GMAW | 19-23 | 100-185 | Short Circuiting Transfer 90% Helium/ 7 ½% Argon / 2 ½% CO2 |
| 1/16 | (1.6) | GTAW | 14-18 | 90-130 | 100% Argon |
| 3/32 | (2.4) | GTAW | 15-20 | 120-175 | 100% Argon |
| 1/8 | (3.2) | GTAW | 15-20 | 150-220 | 100% Argon |