Nikroomtraat/nikkelkroomitraat/nikkel-kroomtraatMaterjali koostis
1.FeCrAl traatriba sisaldab: OCr13Al4,OCr19Al3,OCr21Al4,OCr20Al5,OCr25Al5,OCr21Al6,OCr21Al6Nb,OCr27Al7Mo2.
2. Nikkel-kroomtraadi ribariba sisaldab: Cr25Ni20,Cr20Ni35,Cr15Ni60,Cr20Ni80.
3. Vasknikkeltraadi riba sisaldab:
CuNi1,CuNi2,CuNi5,CuNi8,CuNi10,CuNi14,CuNi19,CuNi23,CuNi30,CuNi34,CuNi44.
4.Constantan traat sisaldab: 6J40,4J42,4J32.
5. Manganiini traat: 6J8,6J12,6J13.