X1 Metal 420i for Binder Jet 3D Printing

Get an instant online quote on 3D printed X1 Metal 420i parts. Certified to ISO 9001:2015, ISO 13485 and AS9100D.

About X1 Metal 420i for Binder Jet 3D Printing

X1 Metal 420i is a high-density metal composite made of 420 stainless steel reinforced with 40% bronze for enhanced wear resistance. This innovative material combines the strength and corrosion resistance of 420 stainless with the lubricity and anti-galling properties of bronze. The result is a durable alloy with over 95% density that exhibits improved mechanical performance and abrasion protection compared to standard 420 stainless steel. The bronze particulate blends uniformly throughout the 420 stainless matrix, delivering robust physical properties ideal for applications requiring high wear resistance with stainless steel’s inherent benefits.

Applications for X1 420i Metal 3D Printing

The exceptional wear resistance and physical durability of X1 420i metal makes it suitable for 3D printing components subjected to highly abrasive conditions.  Example uses include pumping equipment parts, downhole and mining machine components, molds and tooling, and decorative art pieces.  The material’s composition of 420 stainless steel and bronze filler enables it to withstand abrasion and galling far superior to standard 420 stainless.  X1 420i’s exceptional density and balanced material properties allow durable fabrication of industrial parts, tooling, hardware and more requiring stainless steel’s benefits along with enhanced wear performance.

Typical X1 420 Material Properties

Material PropertiesTest MethodValues
Tensile Strength - Ultimate StrengthASTM E899 ksi (682 MPa)
Yield Strength (0.2% offset)ASTM E866 ksi (455 MPa)
Elastic Modulus (ASTM E8)ASTM E821.4 Mpsi (147 GPa)
ElongationASTM E82.3%
HardnessASTM E1897 HRb
Fractional DensityMPIF 4295%+
DensityMPIF 420.284 lbs/in^3 (7.86 g/cm^3)
MachinabilityRefer to ExOne for recommendations
WeldabilityUse silicone bronze rod & TIG weld
Thermal ConductivityASTM E153013 BTU/hr ft °F (22.6 W/m°K)
Specific HeatASTM E12630.114 BTU/lb °F (478 J/kg°K)
Thermal Expansion CoefficientASTM E2287.4 x 10-6/°F (13.4 x 10-6/°K)

Post Processing

Post Processing

Printed parts are oven-cured for handling. Sintering and bronze infiltration above 1100 follows. Cooling rate controls machinability and hardness.

  •      Zirblast (Standard)
  •      Tumble Polished
  •      Medieval Pewter
  •      Damascus Steel
  •      Antique Bronze
  •      Wheat Penny

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