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S44660 Stainless Steel vs. Grade 350 Maraging Steel

Both S44660 stainless steel and grade 350 maraging steel are iron alloys. They have 69% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is S44660 stainless steel and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 20
4.1 to 18
Poisson's Ratio 0.27
0.3
Shear Modulus, GPa 81
75
Shear Strength, MPa 410
710 to 1400
Tensile Strength: Ultimate (UTS), MPa 660
1140 to 2420
Tensile Strength: Yield (Proof), MPa 510
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 11
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
39
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 4.3
5.6
Embodied Energy, MJ/kg 61
74
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 38
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
98 to 190
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
38 to 82
Strength to Weight: Bending, points 22
29 to 49
Thermal Shock Resistance, points 21
35 to 74

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 0.030
0 to 0.030
Chromium (Cr), % 25 to 28
0
Cobalt (Co), % 0
11.5 to 12.5
Iron (Fe), % 60.4 to 71
61.2 to 64.6
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 3.0 to 4.0
4.6 to 5.2
Nickel (Ni), % 1.0 to 3.5
18 to 19
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0.2 to 1.0
1.3 to 1.6
Zirconium (Zr), % 0
0 to 0.020