Mn7C3

metal
· Mn7C3

Mn7C3 is a manganese carbide compound that forms as a hard, brittle intermetallic phase, typically encountered as a constituent in manganese-containing steels, cast irons, and wear-resistant coatings rather than as a standalone engineering material. It appears in industrial applications where extreme hardness and wear resistance are critical, particularly in high-carbon tool steels, abrasion-resistant cast irons, and hardfacing deposits used in mining and crushing equipment. The phase is valued for its exceptional hardness but requires careful composition and processing control because its brittleness and volume change during formation can compromise toughness, making it most suitable for static wear applications rather than impact-heavy service.

wear-resistant coatings and hardfacinghigh-carbon tool steelsabrasion-resistant cast ironsmining and crushing equipmentmetal matrix compositescutting tool inserts

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.
Mn7C3 — Properties & Data | MatWorld