1. STEEL
• Steel is strong in compression and tension, hence it is suitable for all construction
works.
• Steels are highly elastic, ductile, malleable and weldable.
• They can be hardened and tempered.
• They retain magnetic properties as iron.
2. 1.ANGLE
SECTIONS :
Steel angle is a product which
has two legs to form a 90
degree angle.
Angle sections are commonly
used as members in light weight
triangulated structures such as
trusses and towers.
The attraction of angle section is
their ease of fabrication, they
are however more complex to
design than other types of
structural sections.
3. 3. I-Sections :
I-beams (or I-sections), as the name states are manufactured in the shape of a capital 'I'. The core of the I-beam,
better known as the web, will ensure that resistance against shear forces is provided.
I-section in comparison to any other provides higher section modulus and thus providing better lateral
stability as compare to other sections.
The rolled steel I-sections are most commonly used as beams because these provide a large moment of inertia
with the less cross-sectional area and greater lateral stability.
4. 8. EXPANDED
METALS :
Expanded metal is a type of sheet metal
which has been cut and stretched to
form a regular pattern (often diamond-
shaped) of mesh-like material.
It is commonly used for fences and
grates, and as metallic lath to support
plaster or stucco.
