In-depth articles on metallurgy, materials science, and metal processing — written for engineers and learners alike.
Step-by-step tutorial on designing a quench and temper heat treatment cycle. Uses TTT diagram + Jominy hardenability data to select quench medium, verify through-hardness, and specify tempering temperature for 4140 steel.
Step-by-step tutorial on calculating corrosion rates. Covers weight loss coupon calculation (mpy/mm·year), Faraday’s law from corrosion current density, Stern-Geary B constant, and unit conversions.
Free case depth calculator for carburising, nitriding, and carbonitriding using Fick’s Second Law of diffusion. Predicts theoretical case depth from process time, temperature, diffusivity, and concentration boundary conditions.
Free metal weight calculator for round bar, flat plate, hollow pipe, square bar, hex bar, and angle sections in steel, stainless steel, aluminium, titanium, copper, and nickel alloys.
Free linear elastic fracture mechanics (LEFM) calculator. Computes critical crack size from K_IC and applied stress, required K_IC for a known crack, and safety factor assessment per BS 7910 approach.
Free pressure vessel wall thickness calculator per ASME VIII Division 1 UG-27. Calculates minimum wall thickness from design pressure, inside radius, allowable stress, and joint efficiency. Also finds MAWP from known wall thickness.
Free pipe thermal expansion calculator for carbon steel, stainless steel, duplex, titanium, copper, and aluminium piping. Calculates total expansion in mm, expansion per metre, and indicative expansion loop leg length.
Free stress-strain curve calculator. Converts engineering to true stress and strain, calculates Hollomon power law parameters n and K, computes modulus of resilience, toughness estimate, and stress at any strain point.
Free Charpy CVN to K_IC fracture toughness converter using Barsom-Rolfe upper-shelf and BS 7910 transition region correlations. Inputs CVN energy and yield strength; outputs estimated K_IC, critical crack size, and structural assessment.
In-depth guide to vacuum heat treatment of tool steels. Covers furnace design, high-pressure gas quenching, distortion control, and metallurgical outcomes for H13, D2, and M2 grades.