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Grade 250 Maraging Steel vs. SAE-AISI 4161 Steel

Both grade 250 maraging steel and SAE-AISI 4161 steel are iron alloys. They have 69% 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 250 maraging steel and the bottom bar is SAE-AISI 4161 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 7.3 to 17
20
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 600 to 1060
420
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
680
Tensile Strength: Yield (Proof), MPa 660 to 1740
410

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
2.5
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.9
1.5
Embodied Energy, MJ/kg 65
20
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
120
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
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
22

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
0.56 to 0.64
Chromium (Cr), % 0
0.7 to 0.9
Cobalt (Co), % 7.0 to 8.5
0
Iron (Fe), % 66.3 to 71.1
96.7 to 97.6
Manganese (Mn), % 0 to 0.1
0.75 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0.25 to 0.35
Nickel (Ni), % 17 to 19
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0.3 to 0.5
0
Zirconium (Zr), % 0 to 0.020
0