PRICE With different alloying contain level, grade of steel and manufacturing method, the prices of mild steel and stainless steel are different. Typically, 304 stainless steel is about 4 to 5 times expensive than mild steel (Matmatch, n.d.).
OTHERS Special need for welding;
No using in corrosive environment;
Divided into different levels based on Divided into 4 groups based on different crystalline structure;
Divided into different grades.
In a nutshell, stainless steel is more corrosion resistance with great fabrication and long-lasting appearance. On the other hand, Mild steel is more hardness but with low corrosion resistance (Sørensen, Thulstrup, Hansen, Ramlau-Hansen, Meersohn, Skytthe, & Bonde, 2007).
3.2 Column within a building
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However, mild steel is recommended because it is much cheaper than stainless steel. The surface of steel will not be seen and be covered with concrete or other coating. In addition, as the steel is in the column and the column is inside the building, which means there is no significant environmental or corrosive influence to the steel. Thus, in terms of the cost effective, mild steel is recommended in this case.
3.3 Balustrade in rural NSW (Balustrade in outback area of NSW)
Stainless steel is recommended in this case due to the environment influence and corrosion resistance. Balustrade built in the outback of NSW will meet the rusting issue caused by rain, animal excrement, soil moisture and air moisture. However, compared with marine region, the corrosive nature of above environmental elements in rural area are not that strong. Thus, a little bit low corrosion resistance stainless steels, such as ferritic steel and martensitic steel, are recommended to be used in this case.
3.4 Balustrade on Stradbroke