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Filamet M300 Tool Steel

The Virtual Foundry

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140,90 €
140,90 €

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Filament with 84.2 % M300 tool steel, ideal for ductile parts with superior strength and toughness.

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The Filamet M300 Tool Steel filament is a cutting-edge 3D printing filament designed by The Virtual Foundry. By utilizing this filament, manufacturers can effectively sidestep tooling and machining expenses, particularly for short-run production, prototyping endeavors, and bespoke metal part requirements. Available in 1.75 mm diameter, the Filamet M300 Tool Steel filament comes in a spool of 500 g.

Filamet M300 Tool Steel filament stands out as a remarkable innovation, boasting a composition comprising 84.2% metal and exhibiting a density of 3.58 g/cm³. This filament harnesses the power of M300 Tool Steel, a maraging steel amalgamated with iron, nickel, cobalt, molybdenum, and titanium. 

Video 1: Introducing the Filamet M300 Tool Steel filament. Source: The Virtual Foundry.

Maraging steels, renowned for their exceptional strength and toughness while maintaining ductility, are the backbone of this filament's performance. With its low-carbon, high-strength properties, Filamet M300 Tool Steel filament emerges as the go-to choice for applications demanding wear resistance and robustness, resulting in 100% metal parts after sintering.

To achieve optimal results, users require an open architecture FDM/FFF 3D printer (or even a 3D printing pen) equipped with a 0.6 mm hardened steel nozzle, a Filawarmer for preheating the filament, and a model ready for printing. Despite its unique composition, printing with Filamet M300 Tool Steel filament is as straightforward as with regular PLA filament. However, adjustments in slicer settings may be necessary, with a potential increase in flow rate of up to 135%.

Machinable Machinable
Fatigue resistance Fatigue resistance
Metallic content Metallic content
Hide color variations (Hide color variations)

Filamet M300 Datasheet

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Filamet M300 Safety Datasheet

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PRINTING TIPS

It is necessary to use a hardened nozzle of at least 0.6 mm diameter with the Filamet M300 Tool Steel to avoid excessive nozzle deterioration and faulty prints. It is recommended to place the spool so that the filament is going straight into the extruder and set the flow rate to 135 % for best results. Little to no warping occurs during printing with the Filamet M300 Tool Steel filament. As far as recommended infill, the manufacturer explains this in detail in this video:

Video 1: The recommended infill for the TVF materials. Source: The Virtual Foundry.

It is extremely important to note that filament dryers have an adverse effect on this material, hence Filamet M300 Tool Steel should not be dried before use. Nevertheless, proper storage is crucial for filament quality and successful prints as it protects the filament from humidity. It is recommended to store Filamet M300 Tool Steel in a tightly sealed bad with desiccant or in an intelligent filament container. 

SINTERING PROCESS

Necessary materials:

STEP 1: Placing the piece

  1. Fill the crucible with refractory powder leaving 40 mm free on the surface of the crucible.
  2. Immerse the piece in the refractory powder making sure to leave a gap of at least 15 mm between the surface of the piece and the walls and upper and lower parts of the crucible. The refractory powder must not be compacted.
  3. Fill the free 40 mm on the surface of the crucible with sinter carbon.
  4. Place the crucible in the furnace.

STEP 2: Thermal debind

  1. Heat up to 204 ºC at a speed of 33 ºC/h.
  2. Keep at 204 ºC for 2 hours.
  3. Heat up to 427 ºC at a speed of 17 ºC/h.
  4. Keep at 427 ºC for 6 hours.
  5. Heat up to 538 ºC at a speed of 33 ºC/h.
  6. Keep at 538 ºC for 2 hours.

STEP 3: Sintering

  1. Heat up to 1260 ºC at a speed of 333 ºC/h.
  2. Keep at 1260 ºC for 4 hours.

STEP 4: Cooling

  1. Cool down to 583 ºC at a speed of 111 ºC/h.
  2. No hold.

More detailed instructions for crucible packing, debinding and sintering can be found here, in the section that describes debinding and sintering steel.

General information
Manufacturer The Virtual Foundry (USA)
Material M300 tool steel (84.2 %) + PLA 
Format Spool of 500 g
Density 3.58 g/cm3
Amount of metal (volume) 84.2 %
Amount of metal (mass) -
Diameter of filament 1.75 mm
Diameter tolerance ± 0.05 mm
Filament length ±58.1 m (Ø 1.75 mm - 0.5 kg)
Color Grey
RAL/Pantone  -
Print settings
Printing temperature 205-235 ºC
FilaWarmer temperature ✗
Print bed temperature 40-50 ºC
Chamber temperature -
Print speed 60 mm/s
Nozzle diameter ≥0.6 mm stainless steel
Recommended infill More info
Sintering properties
Container Refractory crucible
Refractory powder Steel mix refractory powder
Maximum temperature 1260 ºC
Mechanical properties
Izod impact strength -
Charpy impact strength -
Elongation at break -
Tensile strength -
Tensile Modulus -
Flexural strength -
Flexural modulus -
Surface hardness -
Thermal properties
Softening temperature -
Melting temperature -
Specific properties
Transparency  ✗
Additional Information
HS Code 7205.21
Diameter coil (outer) -
Diameter coil (inner hole) -
Coil Width -


* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.

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