CArbon

Blog | Content-Engineering - Materials | Engineering

Martensite- Five Facts
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1) Martensite is the hardest and most brittle microstructure obtainable in a given steel.
2) Martensite hardness of the steel is a function of the carbon content in that steel.
3) Martensite results from cooling from austenitic temperatures rapidly by pulling the heat out using a liquid quenchant before pearlite can form.
4) As quenched Martensitic structures are too brittle for economic use-they must be tempered.
5) Reheating as quenched Martensite to a temperature just below the AC1 results in the best combinations of strength and toughness.

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Blog | Content-Engineering - Materials | Engineering | Shop Floor

5 Facts About Manganese in Steel
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Manganese contributes to a steel’s strength, mechanical properties, hardenability, deoxidation, machinability, and reduces hot cracking (hot shortness) during hot rolling.

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Blog | Content-Engineering - Materials | Engineering | Shop Floor

Carbon Equivalent And Weldability
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Knowing how to calculate the Carbon Equivalent of a heat of steel will help determine whether or not pre- or post- weld heat treatment may be needed. As long as CE is no more than .35, you probably won’t need to preheat or post weld stress relieve your welded parts. above .35 CE, you may need either or both depending on section thickness and CE.

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