DMLS 17-4PH Stainless Steel vs. Drywall

Compare DMLS 17-4PH Stainless Steel vs. Drywall 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)	1–2MPasourceambient range reported in review (Australian studies)
Compressive strength	not sourced	2.4MPasourcetypical, 70 F / 50% RH
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)	1–2GPasourceambient range reported in review (Australian studies)
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)	not sourced
Thermal expansion	10.4µm/m·Ksourcemean 25-100 °C, ASTM E228, AFTER atmospheric heat treatment (as-built value not published)	16.7µm/m·Ksourcetypical, unrestrained, 3.3-32 C
100 mm part over a 50 °C swing	52µm growth1.61x less	83.5µm growth
Specific heat	460J/kg·Ksourcebase material: wrought 17-4 PH, Condition A, 0-100 °C (Cleveland-Cliffs)	1,090J/kg·Ksourcetypical (from ASHRAE Handbook of Fundamentals, per GA)
Heats up and cools (diffusivity)	5mm²/s	not sourced
Thermal shock resistance	5,474W/m	not sourced
Max service temperature	not sourced	52°Csourcemanufacturer sustained-exposure limit
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	1/2 in. (12.7 mm) regular gypsum board (ASTM C1396), Gypsum Association GA-235-2019 typical/minimum properties; tensile and E from USDA FPL-co-authored review; service limit from USG Sheetrock 1/2 in. submittal

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 Drywall?

DMLS 17-4PH Stainless Steel is stronger: its yield strength is 861 MPa against tensile strength 1.5 MPa for Drywall (574x).

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

DMLS 17-4PH Stainless Steel is stiffer: Young's modulus 197 GPa against 1.5 GPa for Drywall, so the same part in DMLS 17-4PH Stainless Steel deflects less under the same load.

Which expands less with temperature?

DMLS 17-4PH Stainless Steel expands less: 10.4 µm/m·K against 16.7 µm/m·K for Drywall.

Among 59 materials

Stiffness against density

Strength against density