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X1 Metal 316i Binder Jet 3D Printing Service

Get instant online quotes on parts in over 70 metal and plastic materials. Free shipping on all US orders. ISO 9001:2015, ISO 13485 and AS9100D certified.

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Applications for X1 316i Metal 3D Printing

This material system from ExOne has low magnetic properties which makes it particularly useful for applications in the food and medical industries. The copper alloy acts as a natural antibacterial agent making it easy to decontaminate printed parts. Since the matrix material is easy to polish, additional applications exist in bath and kitchen hardware prototypes and low volume production.

X1 316i Stainless Steel infiltrated with bronze is a matrix material composed of 60% stainless steel and 40% bronze infiltrant. The lower yield strength of the material enables it to be easily machined and polished. This material also exhibits enhanced corrosion resistance properties.

Typical X1 316i Material Properties

Material PropertiesTest MethodValues
Material Properties

Tensile Strength - Ultimate Strength

Test Method

ASTM E8

Values

84 ksi (580 MPa)

Material Properties

Yield Strength (0.2% offset)

Test Method

ASTM E8

Values

41 ksi (283 MPa)

Material Properties

Elastic Modulus (ASTM E8)

Test Method

ASTM E8

Values

19.5 Mpsi (135 GPa)

Material Properties

Elongation

Test Method

ASTM E8

Values

14.5%

Material Properties

Hardness

Test Method

ASTM E18

Values

60 HRb

Material Properties

Fractional Density

Test Method

MPIF 42

Values

95%+ approximate

Material Properties

Density

Test Method

MPIF 42

Values

0.284 lbs/in^3 (7.86 g/cm^3)

Material Properties

Machinability

Test Method

Values

Conventionally machinable

Material Properties

Weldability

Test Method

Values

Use silicone bronze rod & TIG weld

Material Properties

Thermal Conductivity (Room Temp.)

Test Method

Values

11 BTU/hr ft °F (19 W/m °K)

Material Properties

Specific Heat

Test Method

ASTM E1269-11

Values

0.131 BTU/lb °F (548 J/kg °K)

Material Properties

Thermal Expansion Coefficient

Test Method

ASTM E831-14

Values

10.37 x 10-6/ °F (18.6 x 10-6/ °K)

Source: ExOne

Surface Finish

  • After sintering: ≈ 600 μin Ra  (15 μm Ra )
  • Bead blasting: ≈ 300 μin Ra  (7.5 μm Ra )
  • Barrel finishing: ≈ 50 μin Ra  (1.25 μm Ra )

Post Processing

After printing is complete, the parts are cured in an oven, which enables the parts to be handled. After curing, the parts are sintered and infiltrated with bronze above 1100°C. Cool down can be varied to control the machinability and hardness of the material.

  • Zirblast (Standard)
  • Tumble Polished
  • Medieval Pewter
  • Damascus Steel
  • Antique Bronze
  • Wheat Penny
bead blasted X1 316i binder jetting

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