Class: E320LR-16
AWS: A5.4
Conforms to Certification: AWS A5.4 ASME SFA A5.4
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
E320LR-16 is similar in composition to type 320, with carbon, silicon, phosphorus, and sulfur controlled to lower limits. Columbium and manganese are kept to a narrow range. Low heat in put is recommended for welding.
| 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 | |
| Yield Strength | 85,000 psi |
| Tensile 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 |
