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AWS ERNiCu-7 vs. SAE-AISI A2 Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while SAE-AISI A2 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
74
Tensile Strength: Ultimate (UTS), MPa 550
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1280
1450
Melting Onset (Solidus), °C 1240
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
38
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 50
5.5
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.5
2.7
Embodied Energy, MJ/kg 120
38
Embodied Water, L/kg 250
73

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 18
25 to 73
Strength to Weight: Bending, points 17
23 to 46
Thermal Diffusivity, mm2/s 5.3
10
Thermal Shock Resistance, points 19
25 to 71

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
1.0 to 1.1
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 18.3 to 36.5
0 to 0.25
Iron (Fe), % 0 to 2.5
89.4 to 93.3
Manganese (Mn), % 0 to 4.0
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 62 to 69
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.3
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.5 to 3.0
0
Vanadium (V), % 0
0.15 to 0.5
Residuals, % 0 to 0.5
0