NT® Iron-based metal powders
| BRAND NT® | Weld metal Standard analysis, % |
Hardness | Applications and properties | Process | |
| NT® 304L 1.4306 |
C Si Cr Ni Mn |
< 0,03 0,5 18,0 11,0 1,3 |
< 200 HV | Completely austenitic alloys with high corrosion resistance, high ductility, and high crack resistance; well suited for use as moderating layer | PTA PS HVOF |
| NT® 316 L 1.4404 |
C Si Cr Ni Mo Mn |
< 0,03 0,5 17,0 12,0 2,5 1,5 |
< 200 HV | Stainless austenitic CrNiMo alloy with low carbon content; very well suited for use as moderating layer in hard facing | PTA PS HVOF |
| NT® 630 1.4542 17-4-PH |
C Si Cr Ni Cu Nb |
0,05 0,4 17,0 4,0 4,0 0,4 |
< 380 HV | Stainless, precipitation-hardenable CrNi alloy stabilised with niobium; characterised by high-strength properties as well as corrosion resistance; especially high resistance to stress-corrosion cracking, in comparison with NT® 304L | PTA PS HVOF |
| NT® 410 1.4006 |
C Si Cr |
0,12 0,3 13,0 |
< 220 HB | Martensitic alloys with good mechanical properties as well as high corrosion resistance in moderately aggressive media; version NT® 420 also stable toward oxidising environments up to 600 °C | PTA PS HVOF |
| NT® 420 1.4021 |
C Si Cr |
0,2 0,5 13,0 |
< 230 HB | ||
| NT® FeCrMn250 | C Si Cr Ni Mn |
0,6 0,7 15,7 1,5 14,7 |
250 HB after hardening 500 HB |
Impact-resistant austenitic alloy with Mn and Cr, also suited for use as moderating layer; NT® FeCrMn250 with high ductility and crack resistance; possible applications: pistons, roller-table rolls, bearing seats, transport wheels, production masters, gear teeth, tool components | PTA |
| NT® FeV12 | C Si Cr Mn Mo V |
2,8 1,0 5,0 1,0 1,5 12,0 |
60-62 HRC | Fe-Cr-V-C-alloy with high resistance to fine abrasive wear; homogeneous and fine distribution of vanadium carbide (hardness: about 2900 HV) in a martensitic matrix; for crack-free cladding of cutting-tool edges and component edges subject to severe load | PTA |
| NT® FeV18 | C Si Cr Mn Mo V |
4,0 1,0 5,0 1,0 1,5 18,0 |
62-64 HRC | In comparison with NT FeV12, even greater hardness and higher wear resistance because of the higher carbon and vanadium contents; likewise well suited for crack-free weld surfacing to satisfy the most stringent requirements | PTA |
| NT® FeCrV15 | C Si Cr Mn Mo V Ni |
4,4 0,9 17,0 0,9 2,0 15,0 3,0 |
60-62 HRC | Martensitic wear-resistant alloy, NT Fe-CrV15, with a high content of vanadium carbide, specially developed for weld surfacing of components subject to abrasive wear; also corrosion-resistant by virtue of the free Cr content of more than 13 %; moreover, capable of secondary hardening in the range from 500 °C to 550 °C; decrease in hardness beyond the latter temperature, but maximal retention of wear resistance because of the carbide content | PTA |
| NT® FeCrV15Ni6 | C Si Cr Mn Mo V Ni |
4,6 0,7 20,0 0,8 2,0 15,0 6,0 |
50 HRC | Formation of a high-temperature-resistant austenitic matrix structure with the addition of 6 % nickel to alloy version FeCrV15; thermally stable up to 800 °C; high wear resistance at high temperature because of the carbide content | PTA |
| NT® FeCrV15Ni9 | C Si Cr Mn Mo V Ni |
4,6 0,7 20,0 0,8 2,0 15,0 9,0 |
45 HRC | Improved ductility properties in comparison with NT® FeCrV15Ni6 | PTA |
| NT® Fe23C | C Si Cr Ni Mo |
2,0 1,5 26,0 10,0 5,0 |
350 HV | Fe-Cr-Ni-Mo alloy for cladding of engine valves; characterised by high corrosion and scaling resistance | |
Further powder alloy types available on request.