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Grade 250 Maraging Steel vs. SAE-AISI D2 Steel

Both grade 250 maraging steel and SAE-AISI D2 steel are iron alloys. They have 70% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 7.3 to 17
5.0 to 16
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 600 to 1060
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
760 to 2000
Tensile Strength: Yield (Proof), MPa 660 to 1740
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
8.0
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.9
3.4
Embodied Energy, MJ/kg 65
50
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 16
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
92 to 100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
27 to 72
Strength to Weight: Bending, points 26 to 40
24 to 46
Thermal Shock Resistance, points 29 to 54
25 to 67

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
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 66.3 to 71.1
81.3 to 86.9
Manganese (Mn), % 0 to 0.1
0 to 0.6
Molybdenum (Mo), % 4.6 to 5.2
0.7 to 1.2
Nickel (Ni), % 17 to 19
0 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.3 to 0.5
0
Vanadium (V), % 0
0 to 1.1
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants