An Overview of Welding Alloy Types and their Applications

14 October 2021

Likewise called filler metals, welding alloys are extra metals that fill in the hole between the two base metals being joined. One definition is “the metal to be included making a welded, brazed or fastened joint. The weld joint comprises the base metal and welding alloy. Welding alloys may contain non-metal materials, like motion, a controlled material that creates a safeguarding gas and defensive slag when warmed. A few welding measures utilise a consumable cathode, meaning it softens into the weld pool. This means that the welding alloy serves as the anode, settling the bend as well as filling the weld crease.

Welding Alloy Types and their Applications


Everybody knows about the strength of steel. It is an alloy that contains iron and 2% of different components. Carbon/steel alloy is normal and can be found in high, low and medium assortments. Higher carbon content means more grounded steel. Steel is flexible and can be utilised with any welding cycle. Welding regions should be cleaned. On the drawback, it can rust and piece from oxidation.

Stainless Steel

In contrast to plain steel, pure is made to oppose consumption and is sterile. This is accomplished by adding 10% to 30% chromium to different components like iron. There is additionally a nickel alloy accessible. Spotless is welded utilising circular segment welding (TIG, MIG or Stick). The drawback is the greater expense.


Like tempered steel, aluminium additionally isn’t just about as destructive as different metals. It is lighter than tempered steel. In welding, unadulterated aluminium and alloys are utilised. TIG welding (GTAW) is the course of decision for welding aluminium. Other welding strategies that are utilised incorporate GMAW (gas metal circular segment welding or MIG). Stick aluminium welding is just utilised for more modest activities. The cycle begins by choosing a joint plan for the base metals (tee, lap, edge, corner)


Among the welding metals, copper is well known because of its electrical conductivity, heat conductivity, consumption resistance, appearance and wear resistance. To be called copper it should be 99.3% least copper content. Cycles utilised in welding incorporate welding, brazing and patching.

Cast Iron

As far as welding metals, low carbon steel is simpler to weld than cast iron. Cast iron has higher carbon and silicon content and isn’t as flexible. When welding with cast iron the surface should be cleaned to eliminate any instilled oil and oil. All breaks should be crushed or recorded. Cast iron is welded with oxyacetylene welding.


Magnesium alloys are lightweight (2/3 of aluminium), it ingests vibration and is not difficult to project. It has a dissolving temperature like aluminium and is welded likewise. At the point when you crush magnesium note that the shavings are combustible (don’t utilise water to extinguish any flares). The metal is welded with a TIG welder.

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