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AWS ERNiCrFe-5 vs. SAE-AISI D7 Steel

AWS ERNiCrFe-5 belongs to the nickel alloys classification, while SAE-AISI D7 steel belongs to the iron alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCrFe-5 and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 630
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 14
27
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 65
10
Density, g/cm3 8.5
7.6
Embodied Carbon, kg CO2/kg material 11
11
Embodied Energy, MJ/kg 150
180
Embodied Water, L/kg 250
130

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
29 to 78
Strength to Weight: Bending, points 19
25 to 48
Thermal Diffusivity, mm2/s 3.6
7.4
Thermal Shock Resistance, points 19
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.080
2.2 to 2.5
Chromium (Cr), % 14 to 17
11.5 to 13.5
Cobalt (Co), % 0 to 0.12
0
Copper (Cu), % 0 to 0.5
0 to 0.25
Iron (Fe), % 6.0 to 10
76.6 to 81.9
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 70 to 78.5
0 to 0.3
Niobium (Nb), % 1.5 to 3.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
3.8 to 4.4
Residuals, % 0 to 0.5
0