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SAE-AISI H25 Steel vs. AWS ERNiCu-7

SAE-AISI H25 steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. 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 SAE-AISI H25 steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 79
61
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
550

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1750
1280
Melting Onset (Solidus), °C 1700
1240
Specific Heat Capacity, J/kg-K 420
440
Thermal Conductivity, W/m-K 26
20
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 38
50
Density, g/cm3 9.1
8.7
Embodied Carbon, kg CO2/kg material 6.2
8.5
Embodied Energy, MJ/kg 93
120
Embodied Water, L/kg 83
250

Common Calculations

Stiffness to Weight: Axial, points 12
10
Stiffness to Weight: Bending, points 22
21
Strength to Weight: Axial, points 22 to 50
18
Strength to Weight: Bending, points 20 to 34
17
Thermal Diffusivity, mm2/s 6.7
5.3
Thermal Shock Resistance, points 22 to 49
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0.22 to 0.32
0 to 0.15
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
18.3 to 36.5
Iron (Fe), % 77.2 to 81.3
0 to 2.5
Manganese (Mn), % 0.15 to 0.4
0 to 4.0
Nickel (Ni), % 0 to 0.3
62 to 69
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 0.4
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0
Residuals, % 0
0 to 0.5