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Grade 250 Maraging Steel vs. ACI-ASTM CF10SMnN Steel

Both grade 250 maraging steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 71% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 7.3 to 17
34
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
660
Tensile Strength: Yield (Proof), MPa 660 to 1740
330

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Melting Completion (Liquidus), °C 1480
1360
Melting Onset (Solidus), °C 1430
1310
Specific Heat Capacity, J/kg-K 450
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 32
15
Density, g/cm3 8.2
7.5
Embodied Carbon, kg CO2/kg material 4.9
3.1
Embodied Energy, MJ/kg 65
45
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 16
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 33 to 61
24
Strength to Weight: Bending, points 26 to 40
22
Thermal Shock Resistance, points 29 to 54
15

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 0.1
Chromium (Cr), % 0
16 to 18
Cobalt (Co), % 7.0 to 8.5
0
Iron (Fe), % 66.3 to 71.1
59.1 to 65.4
Manganese (Mn), % 0 to 0.1
7.0 to 9.0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 17 to 19
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.010
0 to 0.060
Silicon (Si), % 0 to 0.1
3.5 to 4.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.3 to 0.5
0
Zirconium (Zr), % 0 to 0.020
0