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Grade 350 Maraging Steel vs. S33550 Stainless Steel

Both grade 350 maraging steel and S33550 stainless steel are iron alloys. They have 72% 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 grade 350 maraging steel and the bottom bar is S33550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.1 to 18
40
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 710 to 1400
470
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
680
Tensile Strength: Yield (Proof), MPa 830 to 2300
310

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
24
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
4.3
Embodied Energy, MJ/kg 74
61
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 16
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
24
Strength to Weight: Bending, points 29 to 49
22
Thermal Shock Resistance, points 35 to 74
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
0.040 to 0.1
Cerium (Ce), % 0
0.025 to 0.070
Chromium (Cr), % 0
25 to 28
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
48.8 to 58.2
Lanthanum (La), % 0
0.025 to 0.070
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
16.5 to 20
Niobium (Nb), % 0
0.050 to 0.15
Nitrogen (N), % 0
0.18 to 0.25
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0