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Grade 300 Maraging Steel vs. ACI-ASTM CD4MCuN Steel

Both grade 300 maraging steel and ACI-ASTM CD4MCuN steel are iron alloys. They have 70% of their average alloy composition in common. There are 23 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 300 maraging steel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.5 to 18
18
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
770
Tensile Strength: Yield (Proof), MPa 760 to 1990
550

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
18
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.1
3.5
Embodied Energy, MJ/kg 68
49
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 16
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
28
Strength to Weight: Bending, points 28 to 43
24
Thermal Shock Resistance, points 31 to 62
21

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 to 0.040
Chromium (Cr), % 0
24.5 to 26.5
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
2.7 to 3.3
Iron (Fe), % 65 to 68.4
59.5 to 66.3
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
1.7 to 2.3
Nickel (Ni), % 18 to 19
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
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 0.040
Titanium (Ti), % 0.5 to 0.8
0
Zirconium (Zr), % 0 to 0.020
0