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SAE-AISI 1144 Steel vs. Grade 200 Maraging Steel

Both SAE-AISI 1144 steel and grade 200 maraging steel are iron alloys. They have 70% 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 SAE-AISI 1144 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, % 11 to 17
9.1 to 18
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 72
74
Shear Strength, MPa 460 to 510
600 to 890
Tensile Strength: Ultimate (UTS), MPa 750 to 840
970 to 1500
Tensile Strength: Yield (Proof), MPa 420 to 690
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
31
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
4.5
Embodied Energy, MJ/kg 19
59
Embodied Water, L/kg 47
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 110
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 1290
1240 to 5740
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 27 to 30
33 to 51
Strength to Weight: Bending, points 23 to 25
27 to 35
Thermal Shock Resistance, points 22 to 24
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), % 0.4 to 0.48
0 to 0.030
Cobalt (Co), % 0
8.0 to 9.0
Iron (Fe), % 97.5 to 98
67.8 to 71.8
Manganese (Mn), % 1.4 to 1.7
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0.24 to 0.33
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020