MakeItFrom.com
Menu (ESC)

AWS E312 vs. R30001 Cobalt

AWS E312 belongs to the iron alloys classification, while R30001 cobalt belongs to the cobalt alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 25
1.0
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
86
Tensile Strength: Ultimate (UTS), MPa 740
620

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Melting Completion (Liquidus), °C 1410
1530
Melting Onset (Solidus), °C 1360
1260
Specific Heat Capacity, J/kg-K 480
430
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 3.6
8.9
Embodied Energy, MJ/kg 52
130
Embodied Water, L/kg 200
460

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 27
19
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 18
19

Alloy Composition

Carbon (C), % 0 to 0.15
2.0 to 3.0
Chromium (Cr), % 28 to 32
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 52.3 to 63.5
0 to 3.0
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0 to 1.0
Nickel (Ni), % 8.0 to 10.5
0 to 3.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0
11 to 13