FCW M 410NiMo-G
Flux-cored wire for gas-shielded arc welding
Product description
Metal cored wire for gas shielded arc welding for joining, rebuilding and cladding of stainless martensitic and martensitic-ferritic rolled, forged and cast steels.
-Slag free deposit, no post weld cleaning required
-13% Cr – 4% Ni – 0.5% Mo soft martensitic stainless steel
-Diffusible hydrogen guaranteed below 4 ml per 100 g of weld metal (typically around 2 ml/100g)
Product application instructions
FCW M 410NiMo-G is used for the fabrication and rebuilding of turbines in the hydropower industry. The deposit is martensitic and combines good toughness with excellent resistance to cavitation and to stress corrosion cracking.
Together with enhanced productivity, the FCW M 410NiMo-G offers many other advantages compared to solid wires: improved weldability, almost no spatter, better arc stability, enhanced wetting properties, reduced crack sensitivity, better bead appearance and shape.
Examples of materials to be welded (non exhaustive list):
– EN Symbol: X4 CrNi 13 4, X3 CrNiMo 13 4, X3 CrNi 13-4, GX4 CrNiMo 13-4, GX5 CrNi 13 4, GX5 CrNiMo 13-4
– Material number: 1.4313, 1.4407, 1.4413, 1.4414
– UNS: S41500, J91540, J91550
– Wrought: F6NM, Cast CA6NM, ASTM A352, A487, A743, A757
A post-weld heat treatment at 580°C – 620°C is recommended to obtain a tempered martensite that combines strength and ductility with corrosion and cavitation resistance.
Wear resistance
Abrasion
Impact
Metal-Metal
Corrosion
Temperature
Classification
| EN ISO 17633-A | ASME IIC SFA 5.22 & 5.9 | EN 14700 | Equivalent material number |
|---|---|---|---|
| T 13 4 M M12 1 | EC410NiMo (nearest) | T Fe7 | 1.4351 |
Chemical analysis (%)
| C | Mn | If | Cr | Ni | Mo |
|---|---|---|---|---|---|
| 0.02 | 0.9 | 0.7 | 12.5 | 4.5 | 0.5 |
Mechanical characteristics
| PWHT | Rm [MPa] | Rp0.2% [MPa] | A5 [%] | CVN [J] |
|---|---|---|---|---|
| 8 hours at 580°C | 860 | 720 | 18 | +20°C: 65 | -20°C: 55 |
Why choose this cored wire?
FCW M 410NiMo-G flux-cored wire is an excellent choice when welding martensitic stainless steels in demanding environments.
It has been designed to combine high mechanical strength, good corrosion resistance and long-term reliability.
What sets it apart in particular is its balanced alloy composition: with around 13% chromium, a little nickel and a touch of molybdenum, it offers excellent resistance to cracking, even under conditions of severe mechanical or thermal stress.
It is particularly appreciated in fields such as hydroelectricity, where welded parts are subject to high stresses, erosion and cavitation.
Another advantage is that it produces a clean, slag-free deposit, which considerably reduces post-weld finishing work. This is a real time-saver and a plus in terms of productivity.
Finally, its very low diffusible hydrogen content limits the risk of cold cracking, which is essential when working on sensitive steels.
