E320LR-16
Class: E320LR-16
AWS: A5.4
Conforms to Certification: AWS A5.4 | ASME SFA 5.4
Weld Process: Shielded Manual Metal Arc
| AWS Chemical Composition Requirements | |
| C = 0.03 max | Si = 0.30 max |
| Cr = 19.0 – 21.0 | P = 0.02 max |
| Ni = 32.0 – 36.0 | S = 0.015 max |
| Mo = 2.0 – 3.0 | Mn = 1.5 – 2.5 |
| Cu = 3.0 – 4.0 | |
| Nb = 8xCmin – 0.40 max | |
Application
DURAMAX 320LR flux-cored electrodes are a modified version of DM320 electrodes, where the “residuals” – carbon, silicon, phosphorus and sulfur are specified at lower maximum levels. Niobium (Columbium) and manganese are also maintained within tighter parameters. These strict controls eliminate hot cracking and microfissuring frequently encountered in austenitic stainless steel. DM320LR-16 has excellent corrosion resistance against sulfuric acid, phosphoric acid and other chemicals. It is especially suited for pipe welding.
Re-Dry the electrode at 350°C for 60 minutes prior to use.
| Deposited Chemical Composition % (Typical) | ||
| C = 0.024 | Cr = 19.80 | Ni = 33.90 |
| Si = 0.24 | Mn = 2.05 | P = 0.011 |
| S = 0.014 | Mo = 2.40 | Cu = 3.55 |
| Nb=0.19 | ||
| Deposited All Weld Metal Properties% | |
| (Typical) As-Welded | |
| Tensile Strength | 85,000 psi |
| Yield Strength | 57,000 psi |
| Elongation | 34% |
Deposited Charpy-V-Notch Impact Properties %
Not Applicable
| Available Sizes & Recommended Welding Parameters | |||
| Diameter | Voltage | Flat | Amperage Vertical & Overhead |
| 3/32 | 24-28 | 70-85 | 65-75 |
| 1/8 | 26-30 | 85-110 | 80-90 |
| 5/32 | 28-32 | 110-140 | 100-120 |
| 3/16 | 28-32 | 120-160 | 110-130 |