TYPES OF STEEL

TYPES OF REINFORCEMENT

Introduction: Different types of steel has been using in concrete. From that we get proper benefits. Steel has been divided from different methods. Some important methods are here.

1.TYPES OF STEEL ACCORDING TO SHAPE: Steel bars are prepare in different shapes. Mostly use round  shape steel bars in RCC work. Without that square steel bars, pentagon shaped steel bars, hexagon shaped steel bars and octagon shaped steel bars are prepared also.

             

2.TYPES OF STEEL ACCORDING TO SURFACE: Mostly use round shaped steel bars  in RCC works. Its surface has been prepared by two methods.

a. Plain steel bar.

b. deformed steel bar.

(a) Plain steel bar: In old times, its using was a lot. But nowadays ,its using is very few in concrete works.so that, its surface is smooth as result, bond can not be strong.

(b) Deformed steel bar: This type of steels has harshness on its surface. In present, its using is every where.Its best property is that, the steel make strong bonding with concrete.

3.TYPES OF STEEL ACCORDING TO STRENTH: This steel is divided according to strength. Its strength is appear  yield strength. This strength is called grate of steel. Mostly use 40 grade and 60 grade in present. Without that,75 grade and 90 grade of steel use on places. Forty grade of steel has 40 thousands fee square inch strength. So as 60 grade of steel has 60 thousands pound fee square inch strength.

4.TYPES OF STEEL ACCORDING TO USE: There are 6 types of steel according to use.
a. Tensile steel.
b. Compression steel.
c. Shear reinforcement.
d. Bond reinforcement.
e. Torsional reinforcement.
f. Temperature steel.
 

5. TYPES OF STEEL ACCORDING TO MATERIAL: There are three types of steel according to material.
a. Mild Steel.
b. Medium Carbon Steel.
c. High Carbon Steel.
  (a) Mild Steel: In ordinary RCC works use mild steel. This type steel is easy to bending, cutting and binding. In this steel the quantity of carbon is 0.05 to 0.3 person.
(b) Medium Carbon Steel: Medium carbon steel has so many strength. But it is very difficult to bending, cutting and binding. This steel is used in prestressed concrete. The quantity of carbon is include 0.3 to 0.6 person in this steel.
(c) High Carbon Steel: The carbon of steel is include 0.6 to 1.5 person in high carbon steel. If we use much the quantity of carbon in steel as result, the steel will be strong and hard. But, It is very difficult to work on this steel.

6.TYPES OF STEEL ACCORDING TO STRESS: There are two types of steel according to stress.
a. Ordinary Reinforcement.
b. Prestressed Reinforcement.