If we only need stainless steel 304 with a stainless steel with a welding, with which contribution material is it advisable to make the fusion?
It is paid preferably with the 316 because it is richer than various elements such as chromium and nickel, therefore more resistant even to oxidation.
This topic introduces an important aspect that every welder, even non-professional, should consider to make a correct welding.
I don't tell me that at the hobby level certain tricks are not necessary! Who would trust a swing whose welds could yield? Or an iron gate whose hinges could come off?
Before proceeding with the choice of the welding material it is necessary to follow some simple but basic precautions in order not to incur errors that could compromise the success of the welding.
The first step is certainly Identify the support material, that is the material we need to weld or on which we must make the welding. It seems discounted but it is often not.
The second point is theIdentification of the contribution material, that is, that league that we must use for the thermal fusion process on the material to be welded or on whose weld.
At the first two points follows the consideration of How they turn after the Union. It is necessary to mix to prevent differentiated solidification processes cause the so-called "cracks".
The correct procedure can summarize it in the following diagram:
a) identification of the material to be welded
b) identification of the welding material
c) identification of the most suitable welding machine to welding
d) any proper choice of the type of protective gas to be used if the welding process is mig / may or tig
e) any pre and post welding treatments
f) considerations on static and / or dynamic physical characteristics
Each of these aspects must be treated with the utmost attention.