DMLS 17-4PH Stainless Steel vs. Plywood

Compare DMLS 17-4PH Stainless Steel vs. Plywood strength, stiffness, weight and thermal properties.

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DMLS 17-4PH Stainless Steel3D printed metal (DMLS)

Mechanical
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Yield strength	861MPasourcemean, as built, horizontal (N=72)	not given (tensile used)
Ultimate tensile strength	886MPasourcemean, as built, horizontal (N=72)	41.4MPasourcemodulus of rupture (no direct tensile value)
Flexural strength	not sourced	41.4MPasourcestatic bending MOR (Douglas-fir); range 33.72-42.61 across species
Elongation at break	19.9%sourcemean at break, as built, horizontal	not sourced
Young's modulus (stiffness)	197GPasourcebase material: wrought 17-4 PH, Condition H 900 (Cleveland-Cliffs)	7.45GPasourcestatic bending MOE of the panel (Douglas-fir); range 6.96-8.55 across species
Density	7,790kg/m³sourcemean part density (ISO 3369)	not sourced
Strength to weight	110kN·m/kg	not sourced
Stiffness to weight	25.3MN·m/kg	not sourced
Poisson's ratio	0.272sourcebase material: wrought 17-4 PH, all conditions (Cleveland-Cliffs)	not sourced
Shear modulus	77.4GPa	not sourced
Bulk modulus	144GPa	not sourced
Speed of sound	5,029m/s	not sourced
Thermal
Thermal conductivity	17.9W/m·Ksourcebase material: wrought 17-4 PH, Condition H 900, at 149 °C (Cleveland-Cliffs)	0.12W/m·KsourceAPA-recommended design value (Douglas-fir plywood), as reported by FPL/ORNL
Thermal expansion	10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)	3.1–4.5µm/m·Ksourcebase material: solid wood parallel to grain, ovendry, range across species
100 mm part over a 50 °C swing	52µm growth	19µm growth2.74x less
Specific heat	460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)	1,700J/kg·Ksourcebase material: solid wood (all species), 12% MC, 27 C
Heats up and cools (diffusivity)	5mm²/s	not sourced
Thermal shock resistance	5,474W/m	not sourced
Values for	EOS StainlessSteel 17-4PH IndustryLine (powder 9011-0041), EOS M 290, 40 µm, default job 17-4PH_040_StainlessM291_100, as built, horizontal; ISO 6892 & ASTM E8M	Douglas-fir plywood sheathing (construction plywood per PS 1), static bending properties from USDA FPL Wood Handbook FPL-GTR-282 Ch. 12 Table 12-2 (Biblis 2000)

Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.

DMLS 17-4PH Stainless Steel is 3D printed: its properties depend on build direction and print settings; these are typical values.

Questions

Is DMLS 17-4PH Stainless Steel stronger than Plywood?

DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against tensile strength 41.4 MPa for Plywood (20.8x).

Which is stiffer, DMLS 17-4PH Stainless Steel or Plywood?

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 7.45 GPa for Plywood, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.

Which conducts heat better, DMLS 17-4PH Stainless Steel or Plywood?

DMLS 17-4PH Stainless Steel conducts heat better: 17.9 W/m·K against 0.12 W/m·K for Plywood.

Which expands less with temperature?

Plywood expands less: 3.8 µm/m·K against 10.4 µm/m·K for DMLS 17-4PH Stainless Steel.

Among 59 materials

Stiffness against density

Strength against density