ER410 – wire and rod for 410/403 martensitic stainless
Martensitic 12–13 % Cr filler metal for welding and repairing 403 and 410 stainless steels, for example turbine blades, shafts and components.
Product forms and equivalents
| Process | Classification |
|---|---|
| TIG rod (GTAW) | ER410 |
| Solid MIG/MAG wire (GMAW) | ER410 |
| Covered electrode (SMAW) | E410-15/-16 – AWS A5.4 |
| Flux-cored wire (FCAW) | E410T0-1/-4 – AWS A5.22 |
| Submerged arc wire (SAW) | ER410 + flux |
| Designation | Value |
|---|---|
| AWS | ER410 |
| Specification | AWS A5.9/A5.9M / ASME SFA-5.9 |
| UNS | S41080 |
| Others | EN ISO 14343-A: W/G 13; W.Nr. 1.4009* |
Chemical composition (%)
| Element | wt. % |
|---|---|
| C | ≤ 0.12 |
| Cr | 11.5 – 13.5 |
| Ni | ≤ 0.6 |
| Mo | ≤ 0.75 |
| Mn | ≤ 0.6 |
| Si | ≤ 0.5 |
| P | ≤ 0.03 |
| S | ≤ 0.03 |
| Cu | ≤ 0.75 |
Properties of the deposited metal
| Property | Value |
|---|---|
| Tensile strength of deposited metal | ≥ 520 MPa (AWS A5.4 minimum for E410, after PWHT, reference) |
| Elongation | ≥ 20 % (AWS A5.4 minimum for E410, after PWHT, reference) |
Materials welded with ER410
Dissimilar joints: On 416 (free-machining, with sulfur) weldability is limited; ER410 serves when a hardenable bead is wanted, and ER309L when an austenitic bead is acceptable.
Why the composition differs from the base metal
The chemistry follows the base metal so that the bead also hardens and responds to tempering. The difference lies in the tighter limits for Mn, Si, P and S, which reduce cracking and improve toughness; in the case of 416, the wire does not carry the sulfur of the base metal.
Welding precautions
- Preheat and interpass of 200 to 300 °C, according to thickness.
- Tempering PWHT (typically 650–760 °C) right after welding.
- Let the part cool slowly to about 100 °C before PWHT to complete the martensitic transformation.
Frequently asked questions
What is ER410 used for?
Martensitic 12–13 % Cr filler metal for welding and repairing 403 and 410 stainless steels, for example turbine blades, shafts and components.
Why is the composition of ER410 different from the material it welds?
The chemistry follows the base metal so that the bead also hardens and responds to tempering. The difference lies in the tighter limits for Mn, Si, P and S, which reduce cracking and improve toughness; in the case of 416, the wire does not carry the sulfur of the base metal.
Which covered electrode corresponds to ER410?
E410-15/-16 – AWS A5.4.
What precautions apply when welding with ER410?
Preheat and interpass of 200 to 300 °C, according to thickness. Tempering PWHT (typically 650–760 °C) right after welding. Let the part cool slowly to about 100 °C before PWHT to complete the martensitic transformation.
