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Grade 200 Maraging Steel vs. S21900 Stainless Steel

Both grade 200 maraging steel and S21900 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is S21900 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.1 to 18
50
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 600 to 890
510
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
710
Tensile Strength: Yield (Proof), MPa 690 to 1490
390

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
15
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.5
3.0
Embodied Energy, MJ/kg 59
43
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 11
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
300
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 51
26
Strength to Weight: Bending, points 27 to 35
23
Thermal Shock Resistance, points 29 to 45
15

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 0.080
Chromium (Cr), % 0
19 to 21.5
Cobalt (Co), % 8.0 to 9.0
0
Iron (Fe), % 67.8 to 71.8
59.4 to 67.4
Manganese (Mn), % 0 to 0.1
8.0 to 10
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 to 19
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
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
Zirconium (Zr), % 0 to 0.020
0