MakeItFrom.com
Menu (ESC)

EN 1.4482 Stainless Steel vs. R30816 Cobalt

EN 1.4482 stainless steel belongs to the iron alloys classification, while R30816 cobalt belongs to the cobalt alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4482 stainless steel and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
23
Fatigue Strength, MPa 420 to 450
250
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 770 to 800
1020
Tensile Strength: Yield (Proof), MPa 530 to 570
460

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1420
1540
Melting Onset (Solidus), °C 1370
1460
Specific Heat Capacity, J/kg-K 480
420
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.1
Embodied Carbon, kg CO2/kg material 2.7
20
Embodied Energy, MJ/kg 38
320
Embodied Water, L/kg 150
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 250
190
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 820
510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 28 to 29
31
Strength to Weight: Bending, points 24 to 25
25
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 21 to 22
28

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.42
Chromium (Cr), % 19.5 to 21.5
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 66.1 to 74.9
0 to 5.0
Manganese (Mn), % 4.0 to 6.0
1.0 to 2.0
Molybdenum (Mo), % 0.1 to 0.6
3.5 to 4.5
Nickel (Ni), % 1.5 to 3.5
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tungsten (W), % 0
3.5 to 4.5