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Grade 300 Maraging Steel vs. S82031 Stainless Steel

Both grade 300 maraging steel and S82031 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.5 to 18
39
Poisson's Ratio 0.3
0.28
Rockwell C Hardness 31 to 56
27
Shear Modulus, GPa 75
78
Shear Strength, MPa 640 to 1190
540
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
780
Tensile Strength: Yield (Proof), MPa 760 to 1990
570

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
13
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 5.1
2.8
Embodied Energy, MJ/kg 68
39
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 16
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
28
Strength to Weight: Bending, points 28 to 43
24
Thermal Shock Resistance, points 31 to 62
22

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 65 to 68.4
68 to 78.3
Manganese (Mn), % 0 to 0.1
0 to 2.5
Molybdenum (Mo), % 4.6 to 5.2
0.6 to 1.4
Nickel (Ni), % 18 to 19
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0.5 to 0.8
0
Zirconium (Zr), % 0 to 0.020
0