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Grade 200 Maraging Steel vs. S31100 Stainless Steel

Both grade 200 maraging steel and S31100 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 26 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 200 maraging steel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.1 to 18
4.5
Poisson's Ratio 0.3
0.27
Rockwell C Hardness 29 to 45
28
Shear Modulus, GPa 74
79
Shear Strength, MPa 600 to 890
580
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
1000
Tensile Strength: Yield (Proof), MPa 690 to 1490
710

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 31
16
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.5
3.1
Embodied Energy, MJ/kg 59
44
Embodied Water, L/kg 140
170

Common Calculations

PREN (Pitting Resistance) 11
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
40
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
1240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 51
36
Strength to Weight: Bending, points 27 to 35
29
Thermal Shock Resistance, points 29 to 45
28

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 0.060
Chromium (Cr), % 0
25 to 27
Cobalt (Co), % 8.0 to 9.0
0
Iron (Fe), % 67.8 to 71.8
63.6 to 69
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 to 19
6.0 to 7.0
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.15 to 0.25
0 to 0.25
Zirconium (Zr), % 0 to 0.020
0