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SAE-AISI H19 Steel vs. EN 2.4964 Cobalt

SAE-AISI H19 steel belongs to the iron alloys classification, while EN 2.4964 cobalt belongs to the cobalt alloys. There are 20 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 SAE-AISI H19 steel and the bottom bar is EN 2.4964 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
86
Tensile Strength: Ultimate (UTS), MPa 720 to 1990
960

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1540
1630
Melting Onset (Solidus), °C 1490
1550
Specific Heat Capacity, J/kg-K 460
400
Thermal Conductivity, W/m-K 29
15
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Density, g/cm3 8.2
9.6
Embodied Carbon, kg CO2/kg material 7.5
9.8
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 110
450

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 24 to 68
28
Strength to Weight: Bending, points 22 to 43
23
Thermal Diffusivity, mm2/s 7.9
3.9
Thermal Shock Resistance, points 21 to 59
25

Alloy Composition

Carbon (C), % 0.32 to 0.45
0.050 to 0.15
Chromium (Cr), % 4.0 to 4.8
19 to 21
Cobalt (Co), % 4.0 to 4.5
46.4 to 58
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.4 to 85.5
0 to 3.0
Manganese (Mn), % 0.2 to 0.5
0 to 2.0
Molybdenum (Mo), % 0.3 to 0.55
0
Nickel (Ni), % 0 to 0.3
9.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 3.8 to 4.5
14 to 16
Vanadium (V), % 1.8 to 2.2
0