Which list correctly enumerates the four types of SAW wires?

Which list correctly enumerates the four types of SAW wires?

• A. Mild steel; Low and med alloy steel; Stainless steel; Hard facing wires.
• B. Mild steel; Aluminum; Brass; Copper.
• C. Carbon steel; Titanium; Nitrided steel; Ceramic.
• D. Plastic; Ceramic; Glass; Wood.

Answer: (A)

The thing being tested is how SAW filler wires are grouped by the properties they impart to the weld. In submerged arc welding, the filler metal is chosen to match or tailor the weld metal for specific service conditions, and it’s common practice to classify SAW wires into four broad families: mild steel wires for general, low-carbon work; low- to medium-alloy steel wires for higher strength and toughness; stainless steel wires for corrosion resistance; and hard-facing wires for wear or abrasion resistance. This four-family setup matches the typical applications you’ll encounter in fabrication and repair, giving you the right balance of cost, performance, and compatibility with the base metal. The other options mix materials that aren’t standard SAW filler-wire categories—things like aluminum, brass, copper, titanium, nitrided steel, or ceramics, which aren’t used as the four SAW filler-wire types. Plastics, ceramics, glass, and wood aren’t welding wires at all. So they don’t represent the common SAW filler-wire classifications.

The thing being tested is how SAW filler wires are grouped by the properties they impart to the weld. In submerged arc welding, the filler metal is chosen to match or tailor the weld metal for specific service conditions, and it’s common practice to classify SAW wires into four broad families: mild steel wires for general, low-carbon work; low- to medium-alloy steel wires for higher strength and toughness; stainless steel wires for corrosion resistance; and hard-facing wires for wear or abrasion resistance. This four-family setup matches the typical applications you’ll encounter in fabrication and repair, giving you the right balance of cost, performance, and compatibility with the base metal.

The other options mix materials that aren’t standard SAW filler-wire categories—things like aluminum, brass, copper, titanium, nitrided steel, or ceramics, which aren’t used as the four SAW filler-wire types. Plastics, ceramics, glass, and wood aren’t welding wires at all. So they don’t represent the common SAW filler-wire classifications.