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AWS ERNiFeCr-2 vs. SAE-AISI P3 Steel

AWS ERNiFeCr-2 belongs to the nickel alloys classification, while SAE-AISI P3 steel belongs to the iron alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiFeCr-2 and the bottom bar is SAE-AISI P3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 1300
410 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.8
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 13
1.5
Embodied Energy, MJ/kg 190
20
Embodied Water, L/kg 250
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 43
15 to 70
Strength to Weight: Bending, points 32
16 to 44
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 38
14 to 65

Alloy Composition

Aluminum (Al), % 0.2 to 0.8
0
Boron (B), % 0 to 0.0030
0
Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 17 to 21
0.4 to 0.75
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 11.6 to 24.6
96.3 to 98.4
Manganese (Mn), % 0 to 0.35
0.2 to 0.6
Molybdenum (Mo), % 2.8 to 3.3
0
Nickel (Ni), % 50 to 55
1.0 to 1.5
Niobium (Nb), % 4.8 to 5.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.65 to 1.2
0
Residuals, % 0 to 0.5
0