Calculate the TMT Steel Bar Weight

Calculating the weight of a TMT (Thermo-Mechanically Treated) steel bar involves a straightforward formula. Let’s break it down:

Remember that TMT steel bars come in various diameters, and the standard length is typically 12 meters.

Let us go in-depth about how 162 came into the calculation:

The value of 162 in the formula for calculating the weight of a TMT steel bar is derived from the constant 162. Let’s break it down:

Explanation:

• The constant 162 represents the cross-sectional area of a TMT steel bar in square millimeters (mm²).
• It is a standard value used in the formula to convert the diameter and length of the steel bar into its weight.

How It Came:

• The constant 162 is derived from the mathematical properties of a circular cross-section.
• Specifically, it is based on the area of a circle (which is circular in shape) and the density of steel.
• The formula for the area of a circle is:

So, the constant 162 simplifies the conversion from dimensions (diameter and length) to weight.