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Grade 300 Maraging Steel vs. SAE-AISI D2 Steel

Both grade 300 maraging steel and SAE-AISI D2 steel are iron alloys. They have 68% 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 300 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, % 6.5 to 18
5.0 to 16
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 640 to 1190
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
760 to 2000
Tensile Strength: Yield (Proof), MPa 760 to 1990
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 34
8.0
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 5.1
3.4
Embodied Energy, MJ/kg 68
50
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 16
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
92 to 100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
27 to 72
Strength to Weight: Bending, points 28 to 43
24 to 46
Thermal Shock Resistance, points 31 to 62
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), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65 to 68.4
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), % 18 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), % 0.5 to 0.8
0
Vanadium (V), % 0
0 to 1.1
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants