Structural Steel in Australia
Structural steel is a type of steel used as a construction material in Australia. It is one of the most widely used construction materials, due to its high strength and durability. Structural steel is typically made from low-carbon steel alloy, including alloy steels and high-strength low-alloy steels. These are further tempered to specific strength, plasticity and weldability. Structural steel is used for a wide range of applications, from supporting heavy structures such as bridges and skyscrapers to building vehicles and industrial plants.
The most common type of structural steel in Australia is known as grade 250 steel. This steel grade is commonly used in building bridges and other forms of construction. It is strong and ductile, allowing it to be formed into many shapes and sizes without failing. Grade 250 steel is also very corrosion resistant, making it an excellent choice for use around bodies of water as it will not rust. It is also cost efficient, making it a popular choice for construction companies.
Other steel grades used in Australia include grade 300, 350, 400 and 500. Grade 300 steel is an alloy steel, which is known for its good weldability and machinability making it well suited for a variety of structural applications. Grade 350 steel has a higher strength than grade 300, making it suitable for applications that require greater strength. Grade 400 steel is even stronger than grade 350 steel, making it ideal for large and tall structures. Grade 500 steel is extra high strength steel, which has a minimum yield strength of 500 MPa and is used for high rise and large structures.
Structural steels can also be coated with a variety of finishes to protect them from the elements. These include galvanising, painting and powder coating. Galvanising is the process of coating steel with zinc, which increases its corrosion resistance. Painting and powder coating provide protection from the suns UV rays and other types of weathering. This makes them suitable for outdoor use and helps to prevent rust from forming.
In Australia, structural steel is most commonly used for commercial and industrial buildings. Its strength and durability make it well suited for larger scale structures and its corrosion resistance means that it can be used in areas close to bodies of water. Steel is also relatively cost effective, making it a good choice for cost-conscious construction companies. As such, it is one of the most popular construction materials in the country.
