AWS A5.4 E320LR-16
E320LR-16
Alloy 320LR is similar in composition to Alloy 320, with carbon, silicon, phosphorus, and sulfur controlled to lower limits and columbium and manganese kept to a narrower range. This composition is designed to reduce the possibility of microfissuring; however, low heat input is advisable for welding.
Specifications:
| C | Cr | Ni | Mo | Mn | Si | P | S | N | Cu | Fe | X | %X |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.03 max | 19.0-21.0 | 32.0-36.0 | 2.0-3.0 | 1.5-2.5 | 0.30 max | 0.020 max | 0.0015 max | – | 3.0-4.0 | BAL | Nb+Ta | 8xCmin 0.40max |