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Nickel 625 vs. Grade 350 Maraging Steel

Nickel 625 belongs to the nickel alloys classification, while grade 350 maraging steel belongs to the iron alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. 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 nickel 625 and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 33 to 34
4.1 to 18
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 79
75
Shear Strength, MPa 530 to 600
710 to 1400
Tensile Strength: Ultimate (UTS), MPa 790 to 910
1140 to 2420
Tensile Strength: Yield (Proof), MPa 320 to 450
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1290
1420
Specific Heat Capacity, J/kg-K 440
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 80
39
Density, g/cm3 8.6
8.2
Embodied Carbon, kg CO2/kg material 14
5.6
Embodied Energy, MJ/kg 190
74
Embodied Water, L/kg 290
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220 to 250
98 to 190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 26 to 29
38 to 82
Strength to Weight: Bending, points 22 to 24
29 to 49
Thermal Shock Resistance, points 22 to 25
35 to 74

Alloy Composition

Aluminum (Al), % 0 to 0.4
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 23
0
Cobalt (Co), % 0 to 1.0
11.5 to 12.5
Iron (Fe), % 0 to 5.0
61.2 to 64.6
Manganese (Mn), % 0 to 0.5
0 to 0.1
Molybdenum (Mo), % 8.0 to 10
4.6 to 5.2
Nickel (Ni), % 58 to 68.9
18 to 19
Niobium (Nb), % 3.2 to 4.2
0
Phosphorus (P), % 0 to 0.015
0 to 0.010
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0 to 0.4
1.3 to 1.6
Zirconium (Zr), % 0
0 to 0.020

Comparable Variants