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EN 1.4567 Stainless Steel vs. R30155 Cobalt

Both EN 1.4567 stainless steel and R30155 cobalt are iron alloys. They have 59% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4567 stainless steel and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 22 to 51
34
Fatigue Strength, MPa 190 to 260
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Shear Strength, MPa 390 to 490
570
Tensile Strength: Ultimate (UTS), MPa 550 to 780
850
Tensile Strength: Yield (Proof), MPa 200 to 390
390

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
570
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 11
12
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 16
80
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 3.1
9.7
Embodied Energy, MJ/kg 43
150
Embodied Water, L/kg 150
300

Common Calculations

PREN (Pitting Resistance) 19
37
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
230
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 400
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19 to 27
28
Strength to Weight: Bending, points 19 to 24
24
Thermal Diffusivity, mm2/s 3.0
3.2
Thermal Shock Resistance, points 12 to 17
21

Alloy Composition

Carbon (C), % 0 to 0.040
0.080 to 0.16
Chromium (Cr), % 17 to 19
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 63.3 to 71.5
24.3 to 36.2
Manganese (Mn), % 0 to 2.0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 8.5 to 10.5
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.1
0 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0
2.0 to 3.0