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In-depth articles on metallurgy, materials science, and metal processing — written for engineers and learners alike.

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CC
Fundamentals

CCT Diagram vs TTT Diagram — Reading Continuous Cooling Transformation Diagrams

Complete guide to CCT (Continuous Cooling Transformation) diagrams. Covers differences from TTT, critical cooling rate, quench media comparison table, HAZ prediction for welding, and how to read a CCT diagram step by step.

JO
Calculators

Jominy Hardenability Calculator — Steel Composition to Hardness Profile

Free Jominy hardenability calculator for steel. Estimates ideal critical diameter D_I and end-quench hardness profile from steel composition using the Grossmann method. Includes Jominy position to cooling rate and section size reference table.