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SAE-AISI T6 Steel vs. C84400 Valve Metal

SAE-AISI T6 steel belongs to the iron alloys classification, while C84400 valve metal belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI T6 steel and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
39
Tensile Strength: Ultimate (UTS), MPa 880 to 2150
230

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Melting Completion (Liquidus), °C 1830
1000
Melting Onset (Solidus), °C 1770
840
Specific Heat Capacity, J/kg-K 400
370
Thermal Conductivity, W/m-K 18
72
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 70
29
Density, g/cm3 9.5
8.8
Embodied Carbon, kg CO2/kg material 11
2.8
Embodied Energy, MJ/kg 170
46
Embodied Water, L/kg 160
340

Common Calculations

Stiffness to Weight: Axial, points 12
6.6
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 26 to 63
7.2
Strength to Weight: Bending, points 21 to 39
9.4
Thermal Diffusivity, mm2/s 4.7
22
Thermal Shock Resistance, points 26 to 64
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 4.0 to 4.8
0
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0 to 0.25
78 to 82
Iron (Fe), % 55.9 to 63.5
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 0 to 0.3
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 1.5
Silicon (Si), % 0.2 to 0.4
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Tungsten (W), % 18.5 to 21
0
Vanadium (V), % 1.5 to 2.1
0
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7