Inconel welding
Difficulties in welding
Inconel welding is associated with significant difficulties in the transition of metal from solid to liquid state due to the tendency to form pores. The main source of pores in argon arc welding is nitrogen. After the weld cools, the nitrogen returns to the gaseous state, forming pores inside the metal.
Crystallization cracks
Inconel welding is associated with a high propensity for the weld to develop crystallization cracks at the boundaries of large grains, which have a transcrystalline structure. To prevent cracking, it is necessary to limit the content of harmful impurities and introduce elements that bind sulfur in the most refractory compounds.
| Inconel | Ni | Cr | Fe | Mo | Nb | Co | Mn | Cu | Al | Ti | Si | C | S | P | B |
| 600 | 72 | 14-17 | 6-10 | 1 | 0,5 | 0,5 | 0,15 | 0,015 | |||||||
| 625 | 58 | 20-23 | 5 | 8-10 | 3,15-4,15 | 1 | 0,5 | 0,4 | 0,4 | 0,5 | 0,1 | 0,015 | 0,0150 | ||
| 718 | 50-55 | 17-21 | balance | 2,8-3,3 | 4,75-5,5 | 1 | 0,35 | 0,2-0,8 | 0,65-1,15 | 0,3 | 0,35 | 0,08 | 0,015 | 0,0150 | 0,006 |
Welding optimization
An important condition is the cleanliness of the surface of welding materials and base metal as well as the binding of hydrogen. This is solved by the introduction of strong deoxidants into the weld pool (titanium, aluminum, etc.), as well as by using coatings or fluxes that can convert hydrogen into stable volatile compounds.
Furnizor
The supplier Evek GmbH offers to buy welded inconel at the most optimal price in this segment of rolled products. We offer welded inconel for industrial applications from specialised warehouses of Evek GmbH. Timely delivery is ensured by representatives in Eastern European cities.
Buy, bargain price
Supplier offers to buy welded inconel for industrial use, price - due to technological features of production without additional costs. The website of the company Evek GmbH contains information about the latest arrivals of products. The price is optimal from the supplier.
