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ACI-ASTM CA6NM Steel vs. AWS ERNiMo-3

ACI-ASTM CA6NM steel belongs to the iron alloys classification, while AWS ERNiMo-3 belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is AWS ERNiMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 76
83
Tensile Strength: Ultimate (UTS), MPa 850
770

Thermal Properties

Latent Heat of Fusion, J/g 280
320
Melting Completion (Liquidus), °C 1450
1600
Melting Onset (Solidus), °C 1400
1540
Specific Heat Capacity, J/kg-K 480
400
Thermal Expansion, µm/m-K 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
70
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 2.5
15
Embodied Energy, MJ/kg 34
190
Embodied Water, L/kg 110
270

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 30
24
Strength to Weight: Bending, points 26
21
Thermal Shock Resistance, points 31
24

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 11.5 to 14
4.0 to 6.0
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.4 to 84.6
4.0 to 7.0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.4 to 1.0
23 to 26
Nickel (Ni), % 3.5 to 4.5
53.7 to 69
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
0 to 1.0
Vanadium (V), % 0
0 to 0.6
Residuals, % 0
0 to 0.5