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Grade 350 Maraging Steel vs. AISI 384 Stainless Steel

Both grade 350 maraging steel and AISI 384 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
480

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
20
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 5.6
3.7
Embodied Energy, MJ/kg 74
52
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 16
16
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 38 to 82
17
Strength to Weight: Bending, points 29 to 49
17
Thermal Shock Resistance, points 35 to 74
11

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 to 0.040
Chromium (Cr), % 0
15 to 17
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
60.9 to 68
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
17 to 19
Phosphorus (P), % 0 to 0.010
0 to 0.045
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