Galvanized Steel Vs Stainless Steel: Which Is the Better Choice

 

What is Galvanized Steel?

Galvanized steel is coated with a thin layer of zinc. The zinc coating protects the steel beneath it from rust. It’s used to make nuts, bolts, screws, and nails resistant to degradation when they are exposed to the weather. Galvanized steel stands up to water well — as long as it’s not salt water. Welders who work with structural steel can work with galvanized steel, although they will need protection against breathing the fumes.

What is Stainless Steel?

Stainless steel is made by adding chromium to molten steel. It is unusually strong and resistant to rusting caused by contact with water, even salt water. Welding stainless steel is a specialized skill. Welders must exercise much more control when heating and cooling stainless steel. And they must take special care to match filler materials with the steel being welded.

What is the Difference in Price?

Galvanized steel is almost the same price as untreated structural steel. Stainless steel costs four to five times as much as galvanized steel and untreated structural steel. Niobium alloys are even more expensive.

Which Kind of Steel Stands up Better?

As you look through the characteristics of these two types of steel, you can see they are very different from each other. Both kinds of steel are applicable to a huge range of products, but one type will always be a better choice than the other.

Applications of Stainless Steel

Stainless steel is typically used in applications where the risk of corrosion is a major concern and not permissible. Areas of use for stainless steel include:

  • Food processing equipment
  • Pharmaceutical manufacturing equipment
  • Aerospace engine components
  • Kitchen appliances
  • Certain types of fasteners

Applications of Galvanized Steel

Galvanized steel is used for applications where corrosion is not desirable, but small amounts may be permissible and aesthetics are not much of a concern. Applications for galvanized steel include:

  • Duct work
  • Automotive components
  • Some types of fasteners
  • Structural beams
  • Metal cabinetry
  • Railing
  • Walkways
  • Traffic signs
  • Electric poles

Comments

HARISUDHARON G.G said…
Stainless steel is only better
17 September 2023 at 07:15
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