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SAE-AISI D4 Steel vs. Grade 300 Maraging Steel

Both SAE-AISI D4 steel and grade 300 maraging 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 (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
6.5 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 74
75
Shear Strength, MPa 460 to 1210
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
1030 to 2030
Tensile Strength: Yield (Proof), MPa 470 to 1540
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1480
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
34
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.3
5.1
Embodied Energy, MJ/kg 49
68
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 15
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 75
35 to 68
Strength to Weight: Bending, points 24 to 47
28 to 43
Thermal Shock Resistance, points 23 to 63
31 to 62

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 2.1 to 2.4
0 to 0.030
Chromium (Cr), % 11 to 13
0
Cobalt (Co), % 0
8.5 to 9.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
65 to 68.4
Manganese (Mn), % 0 to 0.6
0 to 0.1
Molybdenum (Mo), % 0.7 to 1.2
4.6 to 5.2
Nickel (Ni), % 0 to 0.3
18 to 19
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Vanadium (V), % 0 to 1.0
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants