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ACI-ASTM CB7Cu-2 Steel vs. Grade 200 Maraging Steel

Both ACI-ASTM CB7Cu-2 steel and grade 200 maraging steel are iron alloys. They have 75% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CB7Cu-2 steel and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
9.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
970 to 1500
Tensile Strength: Yield (Proof), MPa 760 to 1180
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
31
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.6
4.5
Embodied Energy, MJ/kg 38
59
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 15
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
1240 to 5740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 34 to 48
33 to 51
Strength to Weight: Bending, points 28 to 35
27 to 35
Thermal Shock Resistance, points 32 to 45
29 to 45

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), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 14 to 15.5
0
Cobalt (Co), % 0
8.0 to 9.0
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 73.6 to 79
67.8 to 71.8
Manganese (Mn), % 0 to 0.7
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 4.5 to 5.5
17 to 19
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020