| steel welding is a very difficult process to do for | | | | of several types of stainless steel materials. They |
| the beginner in this industry, that’s for | | | | will need the austenitic types of stainless steel or |
| sure; in fact there are so many techniques for | | | | 321, 304, 315 and 347. They may also require the |
| doing it. If you are really intent on asking this | | | | use of the martensitic type of stainless steel like |
| question, you first have to know what type of | | | | 410 and the some other stainless steel family. |
| stainless steel product you are making and for | | | | There are also other types of steel being used |
| what stainless steel uses will this product be for? | | | | such as Greek Ascology, the Precipitation |
| A mild steel weld is specific to each one of the | | | | Hardening types, and Jethete M190. Those steel |
| stainless steel uses and the process in which the | | | | materials with 15-5ph, 15-7ph, 17-4ph, and 17-7ph |
| steel has to go through depends on all of those | | | | are steel which have precipitation hardening |
| factors mentioned. | | | | properties. This means that if these materials are |
| 1. If you are in the food service industry, you | | | | exposed to too much heat, they will harden. This |
| need thick stainless steel metal or type 304 | | | | makes them more difficult to weld than those in |
| .063”. The counters, cookers, shelving and | | | | the 300 series. When it comes to welding, the |
| sinks all make use of this type of mild steel weld. | | | | common processes being used are the |
| They are prepared in such a way because this | | | | automated plasma welding and TIG welding. |
| 304 stainless steel do not rust. This will prevent | | | | 3. The nuclear industry also uses a lot of different |
| the trapping of bacteria and other harmful stuff | | | | kinds of stainless steel and a specific requirement |
| onto the surface of the metal. To ensure that | | | | is for the steel to be TIG welded, especially the |
| this is so, the back portion of these steel parts | | | | root pass part. The most common type of steel |
| should be covered with argon. This is to make | | | | being used is basic 304L but the industry |
| sure that the surface is all even out which will | | | | sometimes uses steel with 316 grades. In order |
| prevent bacteria like the dangerous salmonella to | | | | to make better steel materials, TIG roots are |
| be live and multiply in uneven surfaces. To make | | | | combined with stick fill plus heavy wall pipe. |
| the surface even, it should be brushed with a | | | | However, this combination with stainless steel is |
| stainless steel brush; and then if there are mild | | | | hard to weld. On the other hand, pipes which are |
| steel welds that are not smooth, you can use an | | | | ½ inch or less in diameter are easier done |
| abrasive wheel to make it smoother and clean it | | | | with regards to orbital TIG welding. However, |
| well with alcohol. | | | | manual welding of pipe with smaller diameters |
| 2. In the aerospace industry they require the use | | | | might also be hard to accomplish. |