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Grade 350 Maraging Steel vs. ACI-ASTM CB7Cu-1 Steel

Both grade 350 maraging steel and ACI-ASTM CB7Cu-1 steel are iron alloys. They have 67% 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 CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.1 to 18
5.7 to 11
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
960 to 1350
Tensile Strength: Yield (Proof), MPa 830 to 2300
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1500
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 39
13
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.6
Embodied Energy, MJ/kg 74
38
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 16
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
71 to 120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
34 to 48
Strength to Weight: Bending, points 29 to 49
28 to 35
Thermal Shock Resistance, points 35 to 74
32 to 45

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 0.070
Chromium (Cr), % 0
15.5 to 17.7
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 61.2 to 64.6
72.3 to 78.4
Manganese (Mn), % 0 to 0.1
0 to 0.7
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0