AWS A5.5 E7016-A1
Description: R106 is a pearlitic heat-resistant steel electrode with a low-hydrogen potassium coating containing 0.5% Mo. It can be used for all-position welding with AC and DC. The weldment must be preheated to 90 ~ 110 ℃ before welding. Application: It is used for welding boiler pipes with working temperature below 510°C, such as 15Mo, AST-MA204 and A335-P1 pipes, etc. It can also be used for welding general low-alloy high-strength steels. Chemical composition of weld metal(%):| C | Mn | Si | Mo | S | P |
| ≤0. 12 | ≤0.60 | ≤0.40 | 0.40 ~ 0.65 | ≤0.030 | ≤0.030 |
| Test item | Tensile strength Mpa | Yield strength Mpa | Elongation % | Impact value (J) Normal Temp. |
| Guaranteed | ≥490 | ≥390 | ≥20 | — |
| Tested | 530 | 420 | 27 | 60 |
| Rod diameter（mm） | 2.5 | 3.2 | 4.0 | |
| Welding Current （A） | Flat welding | 80 ~ 110 | 110 ~ 140 | 170 ~ 200 |
| Vertical welding, Overhead welding | 70 ~ 90 | 100 ~ 120 | 140 ~ 170 | |