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SAE-AISI S1 Steel vs. C84400 Valve Metal

SAE-AISI S1 steel belongs to the iron alloys classification, while C84400 valve metal belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI S1 steel and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
39
Tensile Strength: Ultimate (UTS), MPa 690 to 1840
230

Thermal Properties

Latent Heat of Fusion, J/g 260
180
Melting Completion (Liquidus), °C 1500
1000
Melting Onset (Solidus), °C 1450
840
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 41
72
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
16
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
17

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
29
Density, g/cm3 8.0
8.8
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
46
Embodied Water, L/kg 56
340

Common Calculations

Stiffness to Weight: Axial, points 13
6.6
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 24 to 64
7.2
Strength to Weight: Bending, points 22 to 42
9.4
Thermal Diffusivity, mm2/s 11
22
Thermal Shock Resistance, points 21 to 56
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.4 to 0.55
0
Chromium (Cr), % 1.0 to 1.8
0
Copper (Cu), % 0 to 0.25
78 to 82
Iron (Fe), % 91.6 to 96.7
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Manganese (Mn), % 0.1 to 0.4
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 1.5
Silicon (Si), % 0.15 to 1.2
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Tungsten (W), % 1.5 to 3.0
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7