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AWS E309H vs. Grade CW12MW Nickel

AWS E309H belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 AWS E309H and the bottom bar is grade CW12MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 34
4.6
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
85
Tensile Strength: Ultimate (UTS), MPa 620
560

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1410
1610
Melting Onset (Solidus), °C 1370
1560
Specific Heat Capacity, J/kg-K 480
410
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 3.7
13
Embodied Energy, MJ/kg 52
180
Embodied Water, L/kg 180
280

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0.040 to 0.15
0 to 0.12
Chromium (Cr), % 22 to 25
15.5 to 17.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 55.8 to 65.5
4.5 to 7.5
Manganese (Mn), % 0.5 to 2.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.75
16 to 18
Nickel (Ni), % 12 to 14
49.2 to 60.1
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
3.8 to 5.3
Vanadium (V), % 0
0.2 to 0.4