Answer :
Final answer:
High strength steel is preferred for its superior load-bearing capacity, making it suitable for structural applications requiring high strength. However, ASTM A36 may be favored in less demanding applications due to its cost-effectiveness.
Explanation:
When considering which material should be used for structural applications, ASTM A36 or high strength steel, and why, various factors must be taken into account such as mechanical properties, cost, durability, and environmental resistance. ASTM A36 is a standard structural steel grade commonly used for a wide array of structural and construction applications, providing a good balance of strength, formability, and weldability. However, it does not have the high strength-to-weight ratio boasted by high strength steels.
High strength steel, on the other hand, which could be in the category of advanced high strength steels (AHSS), provides superior load-bearing capacity and strength-to-weight ratio compared to ASTM A36. This means that for applications requiring high strength, where the ability to bear significant loads or resist forces without deformation is critical, high strength steel is the preferred material. Despite this, ASTM A36 may be chosen for certain applications due to its cost-effectiveness and sufficient performance in less demanding circumstances.
It is important to consider the specific requirements of the application when choosing between ASTM A36 and high strength steel. For structural applications demanding high strength and load capacity, option B) 'High strength steel, because it provides superior load-bearing capacity' is the appropriate choice. However, if the budget is a constraint and the structural demands are not as intense, option C) 'ASTM A36, because it is more cost-effective' may be more suitable.