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Welding Steel

As we know that welding is to make steel stick each others like gluing metal to metal using welding electrode. Not all kind of steel can be welded each other, each steel have their own steel weld ability to measure the ability to weld. Welding operators should know the type of steel to be welded so they can setting the suitable ampere and time to weld steel to steel. The welding ability have their own standard of each steel. More easier of steel to be welded have more less weld ability, higher weld ability more difficult to be welded.

Carbon steel have higher welded ability than stainless steel, because carbon steel more contain of carbon while stainless steel have more contain of metal on their steel composition. After we know the characteristic of each element that compose of each type of steel then we can predict the weld ability even we don't use weld ability table to do this job. Experience welding operator can setting the amperage of welding, type of welding electrode and time to weld to make perfect welding. Welding quality is tested by x-ray to see the quality of welding. Good welding have no porous on the welding area, bad welding have many pores on the area of welding so this make easily to corrode on the welding area, and can be dangerous for steel structure. For steel structure more safe use bolt and nut compare to welding system. So civil engineer use two kind system (welding and bolting) to guarantee their structure.

The example of good welding result on carbon steel and stainless steel as follows:

carbon steel welding 1
carbon steel welding 1
carbon steel welding 2
carbon steel welding 2

Stainless Steel Welding
Stainless Steel Welding

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