MakeItFrom.com
Menu (ESC)

Grade 350 Maraging Steel vs. R30035 Cobalt

Grade 350 maraging steel belongs to the iron alloys classification, while R30035 cobalt belongs to the cobalt alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 22 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 R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220 to 230
Elongation at Break, % 4.1 to 18
9.0 to 46
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
84 to 89
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
900 to 1900
Tensile Strength: Yield (Proof), MPa 830 to 2300
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 450
440
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
100
Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 5.6
10
Embodied Energy, MJ/kg 74
140
Embodied Water, L/kg 160
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
160 to 320
Stiffness to Weight: Axial, points 13
14 to 15
Stiffness to Weight: Bending, points 23
23 to 24
Strength to Weight: Axial, points 38 to 82
29 to 61
Strength to Weight: Bending, points 29 to 49
24 to 39
Thermal Shock Resistance, points 35 to 74
23 to 46

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0 to 0.015
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 11.5 to 12.5
29.1 to 39
Iron (Fe), % 61.2 to 64.6
0 to 1.0
Manganese (Mn), % 0 to 0.1
0 to 0.15
Molybdenum (Mo), % 4.6 to 5.2
9.0 to 10.5
Nickel (Ni), % 18 to 19
33 to 37
Phosphorus (P), % 0 to 0.010
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.15
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 1.3 to 1.6
0 to 1.0
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants