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Grade 200 Maraging Steel vs. AISI 446 Stainless Steel

Both grade 200 maraging steel and AISI 446 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 (13, in this case) are not shown.

For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.1 to 18
23
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 74
79
Shear Strength, MPa 600 to 890
360
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
570
Tensile Strength: Yield (Proof), MPa 690 to 1490
300

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 460
490
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.5
2.4
Embodied Energy, MJ/kg 59
35
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 11
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
230
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 33 to 51
21
Strength to Weight: Bending, points 27 to 35
20
Thermal Shock Resistance, points 29 to 45
19

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 0.2
Chromium (Cr), % 0
23 to 27
Cobalt (Co), % 8.0 to 9.0
0
Iron (Fe), % 67.8 to 71.8
69.2 to 77
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 to 19
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.010
0 to 0.040
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