AISI 316LN Stainless Steel vs. Grade 250 Maraging Steel

Both AISI 316LN stainless steel and grade 250 maraging steel are iron alloys. They have 82% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AISI 316LN stainless steel and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		42
Elongation at Break, %		7.3 to 17

Poisson's Ratio		0.28
Poisson's Ratio		0.3

Shear Modulus, GPa		82
Shear Modulus, GPa		75

Shear Strength, MPa		410
Shear Strength, MPa		600 to 1060

Tensile Strength: Ultimate (UTS), MPa		590
Tensile Strength: Ultimate (UTS), MPa		970 to 1800

Tensile Strength: Yield (Proof), MPa		230
Tensile Strength: Yield (Proof), MPa		660 to 1740

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1480

Melting Onset (Solidus), °C		1380
Melting Onset (Solidus), °C		1430

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		450

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		19
Base Metal Price, % relative		32

Density, g/cm³		7.9
Density, g/cm³		8.2

Embodied Carbon, kg CO₂/kg material		3.8
Embodied Carbon, kg CO₂/kg material		4.9

Embodied Energy, MJ/kg		53
Embodied Energy, MJ/kg		65

Embodied Water, L/kg		150
Embodied Water, L/kg		140

Common Calculations

PREN (Pitting Resistance)		27
PREN (Pitting Resistance)		16

Resilience: Ultimate (Unit Rupture Work), MJ/m³		200
Resilience: Ultimate (Unit Rupture Work), MJ/m³		130 to 150

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		33 to 61

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		26 to 40

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		29 to 54

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0.050 to 0.15

Boron (B), %		0
Boron (B), %		0 to 0.0030

Calcium (Ca), %		0
Calcium (Ca), %		0 to 0.050

Carbon (C), %		0 to 0.030
Carbon (C), %		0 to 0.030

Chromium (Cr), %		16 to 18
Chromium (Cr), %		0

Cobalt (Co), %		0
Cobalt (Co), %		7.0 to 8.5

Iron (Fe), %		62 to 71.9
Iron (Fe), %		66.3 to 71.1

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0 to 0.1

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		4.6 to 5.2

Nickel (Ni), %		10 to 14
Nickel (Ni), %		17 to 19

Nitrogen (N), %		0.1 to 0.16
Nitrogen (N), %		0

Phosphorus (P), %		0 to 0.045
Phosphorus (P), %		0 to 0.010

Silicon (Si), %		0 to 0.75
Silicon (Si), %		0 to 0.1

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.010

Titanium (Ti), %		0
Titanium (Ti), %		0.3 to 0.5

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.020