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EN 1.4983 Stainless Steel vs. R30008 Cobalt

EN 1.4983 stainless steel belongs to the iron alloys classification, while R30008 cobalt belongs to the cobalt alloys. They have 48% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4983 stainless steel and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
1.1 to 73
Fatigue Strength, MPa 200
320 to 530
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
83
Tensile Strength: Ultimate (UTS), MPa 630
950 to 1700
Tensile Strength: Yield (Proof), MPa 230
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 19
95
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 4.1
8.1
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 150
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 140
590 to 2720
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
31 to 56
Strength to Weight: Bending, points 21
25 to 37
Thermal Shock Resistance, points 14
25 to 44

Alloy Composition

Boron (B), % 0.0015 to 0.0060
0 to 0.0010
Carbon (C), % 0.040 to 0.080
0 to 0.15
Chromium (Cr), % 16 to 18
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Iron (Fe), % 61.8 to 69.6
7.6 to 20
Manganese (Mn), % 0 to 2.0
1.0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
6.5 to 7.5
Nickel (Ni), % 12 to 14
15 to 18
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.75
0 to 1.2
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.4 to 0.8
0