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Grade 350 Maraging Steel vs. SAE-AISI 5140 Steel

Both grade 350 maraging steel and SAE-AISI 5140 steel are iron alloys. They have 63% 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 350 maraging steel and the bottom bar is SAE-AISI 5140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.1 to 18
12 to 29
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 710 to 1400
360 to 600
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
560 to 970
Tensile Strength: Yield (Proof), MPa 830 to 2300
290 to 840

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.1
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.4
Embodied Energy, MJ/kg 74
19
Embodied Water, L/kg 160
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
76 to 180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 38 to 82
20 to 34
Strength to Weight: Bending, points 29 to 49
19 to 28
Thermal Shock Resistance, points 35 to 74
16 to 29

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
0.38 to 0.43
Chromium (Cr), % 0
0.7 to 0.9
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
97.3 to 98.1
Manganese (Mn), % 0 to 0.1
0.7 to 0.9
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 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), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants