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SAE-AISI D4 Steel vs. Grade 350 Maraging Steel

Both SAE-AISI D4 steel and grade 350 maraging steel are iron alloys. They have 64% 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 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.4 to 15
4.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 74
75
Shear Strength, MPa 460 to 1210
710 to 1400
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
1140 to 2420
Tensile Strength: Yield (Proof), MPa 470 to 1540
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
39
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.3
5.6
Embodied Energy, MJ/kg 49
74
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 15
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 160
98 to 190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 27 to 75
38 to 82
Strength to Weight: Bending, points 24 to 47
29 to 49
Thermal Shock Resistance, points 23 to 63
35 to 74

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
11.5 to 12.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
61.2 to 64.6
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
1.3 to 1.6
Vanadium (V), % 0 to 1.0
0
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants