maraging steel

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June 30, 2026

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Maraging steel is a strong, tough, low-carbon steel characterized by its martensitic structure and its ability to harden through aging. This type of steel contains up to 25 percent nickel, and its hardening occurs when precipitates form during an aging process. The term "maraging" itself is a portmanteau of "martensite" and "aging".1

This steel is a product of advanced metallurgical techniques, specifically heat treatment processes like those used for hardening. While many steels harden through processes involving quenching and tempering, maraging steels achieve exceptional strength and toughness through a precipitation-hardening mechanism. This allows for the creation of materials with superior mechanical properties, first developed in the early 1960s.21

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nickel processing
High-strength steels
…carbon-free iron alloy known as maraging steel has been developed. It contains 18 percent nickel, plus cobalt, titanium, and molybdenum. This alloy can be heat-treated to provide a tensile strength of some 2,000 megapascals (i.e., 21,000 kilograms per square centimetre, or 300,000 pounds per square inch), coupled with an elongation…
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…carbon-free iron alloy known as maraging steel has been developed. It contains 18 percent nickel, plus cobalt, titanium, and molybdenum. This alloy can be heat-treated to provide a tensile strength of some 2,000 megapascals (i.e., 21,000 kilograms per square centimetre, or 300,000 pounds per square inch), coupled with an elongation…
Read More