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ACI-ASTM CF8C Steel vs. Grade 200 Maraging Steel

Both ACI-ASTM CF8C steel and grade 200 maraging steel are iron alloys. They have 78% of their average alloy composition in common. There are 24 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 ACI-ASTM CF8C steel and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
9.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 530
970 to 1500
Tensile Strength: Yield (Proof), MPa 260
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.7
4.5
Embodied Energy, MJ/kg 53
59
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 20
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1240 to 5740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
33 to 51
Strength to Weight: Bending, points 19
27 to 35
Thermal Shock Resistance, points 11
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 0.080
0 to 0.030
Chromium (Cr), % 18 to 21
0
Cobalt (Co), % 0
8.0 to 9.0
Iron (Fe), % 61.8 to 73
67.8 to 71.8
Manganese (Mn), % 0 to 1.5
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
3.0 to 3.5
Nickel (Ni), % 9.0 to 12
17 to 19
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020