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AWS ERNi-1 vs. SAE-AISI A2 Steel

AWS ERNi-1 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 ERNi-1 and the bottom bar is SAE-AISI A2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
190
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 69
74
Tensile Strength: Ultimate (UTS), MPa 470
710 to 2040

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 73
38
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 19
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 60
5.5
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 11
2.7
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 230
73

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 15
25 to 73
Strength to Weight: Bending, points 15
23 to 46
Thermal Diffusivity, mm2/s 19
10
Thermal Shock Resistance, points 17
25 to 71

Alloy Composition


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Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0 to 0.15
1.0 to 1.1
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 0 to 1.0
89.4 to 93.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 93 to 98
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 2.0 to 3.5
0
Vanadium (V), % 0
0.15 to 0.5
Residuals, % 0 to 0.5
0