The HMT Calc is an advanced yet easy-to-use tool designed for engineers, manufacturers, and industrial professionals to calculate pipe weights, dimensions, and material properties instantly.
Whether you work with seamless tubes, chemical compositions, or NPS and Gauge specifications, this app gives you accurate results in seconds.

Key Features:
Manual Calculator
Easily switch between mm and inch units to calculate pipe weights based on OD (Outer Diameter), THK (Thickness), and ID (Inner Diameter).
NPS Calculator
Quickly compute pipe weights and rates using Nominal Pipe Size and Schedule specifications.
Gauge Units Calculator
Select OD and wall thickness (gauge) to get precise weights and conversions in kg/m, kg/ft, lbs/m, and lbs/ft for both Carbon Steel (CS) and Stainless Steel (SS).
Chemical Composition Viewer
Browse standard chemical composition and mechanical properties for various specification grades — including %C, %Mn, %Cr, %Ni, Hardness, Yield Strength (Y.S), Ultimate Tensile Strength (U.T.S), and more.
About Section
Learn more about Heavy Metal & Tubes Ltd., a leading manufacturer of cold-finished seamless tubes and pipes, with insights into its production process and quality standards.