MakeItFrom.com
Menu (ESC)

Type 2 Pewter vs. G-CoCr28 Cobalt

Type 2 pewter belongs to the otherwise unclassified metals classification, while G-CoCr28 cobalt belongs to the cobalt alloys. There are 19 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 Type 2 pewter and the bottom bar is G-CoCr28 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 52
210
Poisson's Ratio 0.35
0.28
Shear Modulus, GPa 19
83
Tensile Strength: Ultimate (UTS), MPa 52 to 68
560

Thermal Properties

Latent Heat of Fusion, J/g 69
320
Melting Completion (Liquidus), °C 300
1330
Melting Onset (Solidus), °C 240
1270
Specific Heat Capacity, J/kg-K 220
470
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Base Metal Price, % relative 75
100
Density, g/cm3 7.3
8.1
Embodied Carbon, kg CO2/kg material 12
6.2
Embodied Energy, MJ/kg 210
84
Embodied Water, L/kg 1220
440

Common Calculations

Stiffness to Weight: Axial, points 3.9
15
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.0 to 2.6
19
Strength to Weight: Bending, points 4.3 to 5.1
19
Thermal Shock Resistance, points 3.4 to 4.4
14

Alloy Composition

Antimony (Sb), % 5.0 to 7.5
0
Arsenic (As), % 0 to 0.050
0
Carbon (C), % 0
0.050 to 0.25
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
48 to 52
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 0 to 0.015
9.7 to 24.5
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 90 to 93
0
Zinc (Zn), % 0 to 0.0050
0