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Grade 200 Maraging Steel vs. AISI 420 Stainless Steel

Both grade 200 maraging steel and AISI 420 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 (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 AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.1 to 18
8.0 to 15
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 600 to 890
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
690 to 1720
Tensile Strength: Yield (Proof), MPa 690 to 1490
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1460
1510
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 31
7.5
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.5
2.0
Embodied Energy, MJ/kg 59
28
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 11
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
380 to 4410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 51
25 to 62
Strength to Weight: Bending, points 27 to 35
22 to 41
Thermal Shock Resistance, points 29 to 45
25 to 62

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
0.15 to 0.4
Chromium (Cr), % 0
12 to 14
Cobalt (Co), % 8.0 to 9.0
0
Iron (Fe), % 67.8 to 71.8
82.3 to 87.9
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
0 to 0.5
Nickel (Ni), % 17 to 19
0 to 0.75
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

Comparable Variants