MA 300 | 1.6354 - Data sheet
1.6358 | UNS K93120 | AMS 6514
Maraging 300 is a cobalt-containing martensitic age-hardening steel that offers very high strength with moderate toughness. This steel is suitable for use at temperatures up to 450°C and maintains constant notch impact properties at temperatures down to -50°C. Maraging 300 has a martensitic microstructure in the annealed state and achieves its high strength through precipitation heat treatment at a relatively low temperature. Maraging 300 is used for highly dynamic components in aviation and aerospace, high-performance motorsports, and precision engineering.
Product forms for MA 300 | 1.6354
- 23,00 mm Ø
- 32,00 mm Ø
Areas of application for MA 300 | 1.6354
Ball bearings, high performance components for motorsports, tools, drive shafts, and gears.
Characteristics MA 300 | 1.6354
Chemical composition - limits in %
| Fe | Rest |
| Ni | 18,0 - 19,0 |
| Co | 8,0 - 9,5 |
| Mo | 4,6 - 5,2 |
| Ti | 0,55 - 0,8 |
| Al | 0,05 - 0,15 |
| Si | max. 0,10 |
| Mn | max. 0,10 |
| S | max. 0,010 |
| C | max. 0,03 |
Physical constants and thermal properties
| Density | 8,0 g/cm³ |
| Melting point | 1410 °C |
| Thermal conductivity at 20°C | 25,5 W/m · °C |
| Elongation coefficient at 21-100°C |
11,3 μm/m · °C |
Typical mechanical properties (room temperatur, heat treated condition)
| Yield strength | min. 2035 MPa |
| Tensile strength | min. 2000 MPa |
| Elongation | min. ~12 % |
All information is subject to change without notice. The properties correspond to the material in the heading. They may vary for other specifications. Please contact us for more details.
Material cutting:
S+D METALS is more than just a stockist. Save time and a processing step by letting S+D METALS cut your coils, sheets, plates, and round bars to size according to your specifications in S+D METALS own machine park or by one of our capable partners. All this within the shortest time possible.
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Your contact
Michael Brackenwagen
Authorized Representative | Senior Product Manager Special Stainless Steel | Aerospace + Aviation + Industry
+49 4174 66 94-116
m.brackenwagen@sd-metals.com
Veronika Droßbach
Product Manager Special Stainless Steel | Aerospace + Aviation + Industry
+49 4174 66 94-117
v.drossbach@sd-metals.com
