Answer
Óxido negro (MIL-DTL-13924) ha'e peteĩ revestimiento conversión rehegua ojejapóva peteĩ reacción química rupive peteĩ anillo espiral acero al carbono (SAE 1070-1090) superficie reheve. Ndojoguái pe chapa-pe, nomoĩri tuicha espesor pe anillo-pe (menos de 1 micrómetro), he’iséva ndojokói umi tolerancia apretada pe ajuste surco rehegua. Ome'ë nivel moderado resistencia corrosión, principalmente oactuávo portador ramo umi revestimiento aceite suplementario térã cera. One of its greatest advantages in high-strength springs is that it does not carry the risk of hydrogen embrittlement associated with electroplating. In automotive applications, black oxide is used for internal engine components where the ring will be continuously lubricated by oil, providing sufficient protection during storage and assembly.
