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Grade 350 Maraging Steel vs. ACI-ASTM CD4MCu Steel

Both grade 350 maraging steel and ACI-ASTM CD4MCu 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 350 maraging steel and the bottom bar is ACI-ASTM CD4MCu steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.1 to 18
18
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
770
Tensile Strength: Yield (Proof), MPa 830 to 2300
550

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
18
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.5
Embodied Energy, MJ/kg 74
49
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 16
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
28
Strength to Weight: Bending, points 29 to 49
24
Thermal Shock Resistance, points 35 to 74
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), % 11.5 to 12.5
0
Copper (Cu), % 0
2.8 to 3.3
Iron (Fe), % 61.2 to 64.6
59.9 to 66.3
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
1.8 to 2.3
Nickel (Ni), % 18 to 19
4.8 to 6.0
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), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0