Stainless steel welding with brass
Are you interested in welding stainless steel with brass from the supplier company AvecGlob? Here you will find the necessary information on this topic.
Some brands and types of stainless steels are poorly welded, including, and with brass alloys.
Austenitic stainless steels
Virtually all grades of these steels can be welded together with brass. It should be noted that such steels tend to intergranular corrosion due to their relatively large amount of carbon. Intergranular corrosion occurs when chrome from stainless steel combines with carbon instead of creating a protective layer of chromium oxide. These chromium carbides will allow the area around the weld to be corroded over time. Therefore, in the welding electrode, the presence of titanium and / or niobium is desirable with a minimum carbon content.
These two forms of preventing intercrystalline corrosion allow to weld austenitic stainless steel with brass, reducing or eliminating in general the risks of destruction of the weld zone or thermal impact.
Ferritic stainless steels
In general, ferritic stainless steels are best welded with brass, since they contain a minimum percentage of chromium. Intergranular corrosion for them is not so important because of the lower amount of chromium in ferritic stainless steels. Lower amounts of alloying elements also reduce the risk of hot cracking during welding, especially since zinc burning can not be a high welding temperature.
Supplier — AvekGlob Company — offers to purchase assortment of various brass alloys of domestic and foreign production. Products can be bought at a price formed on the basis of European and world standards. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.
Martensitic stainless steels
Due to the higher carbon content, it is more difficult to obtain more stable welds when welding martensitic stainless steels with brasses than in the previous cases. The increased carbon content in combination with other alloying elements found in stainless steels increases the likelihood of a brittle microstructure. This can cause cracking of the joints. To prevent cracking, several precautions must be taken.
Hydrogen introduced into the weld seam from the welding process should be minimized to reduce the risk of hydrogen cracking. In addition, to reduce the brittleness of the weld and the heat affected zone, a preliminary (for warm-up) and post-weld heat treatment should be used.
There are martensitic stainless steel grades that are considered almost impossible for welding with brass.
Other types of stainless steel
Duplex stainless steel is an integral part of austenite and partial ferrite. To achieve this hybrid composition, complex chemical compounds are used. As a rule, they have a lower nickel and more chromium than other stainless steels. They can be welded with brass, but for different types of duplex stainless steels it is necessary to use different fillers.
Galvanized stainless steels receive most of their strength and hardness from intermetallic deposits, which block dislocations in the microstructure of stainless steel. These sediments are formed by a special form of heat treatment. When heat from welding is applied to these materials, this can compromise the original mechanical properties of the stainless steel for hardening. These materials must be heat treated after welding in accordance with the recommendations of the manufacturer of the material. The temperature is selected by brass.
Supplier — AvekGlob Company — offers various types of products from brass alloys of domestic and foreign production, which meets the requirements of standards. The products are offered at affordable prices from the manufacturer. The supplier guarantees the timely delivery of products to any address specified by the consumer.