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S21603 Stainless Steel vs. C84400 Valve Metal

S21603 stainless steel belongs to the iron alloys classification, while C84400 valve metal belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 45
19
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
39
Tensile Strength: Ultimate (UTS), MPa 690
230
Tensile Strength: Yield (Proof), MPa 390
110

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 990
160
Melting Completion (Liquidus), °C 1420
1000
Melting Onset (Solidus), °C 1380
840
Specific Heat Capacity, J/kg-K 480
370
Thermal Expansion, µm/m-K 17
19

Otherwise Unclassified Properties

Base Metal Price, % relative 17
29
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 3.6
2.8
Embodied Energy, MJ/kg 50
46
Embodied Water, L/kg 160
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
36
Resilience: Unit (Modulus of Resilience), kJ/m3 380
58
Stiffness to Weight: Axial, points 14
6.6
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25
7.2
Strength to Weight: Bending, points 22
9.4
Thermal Shock Resistance, points 15
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 22
0
Copper (Cu), % 0
78 to 82
Iron (Fe), % 57.6 to 67.8
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Manganese (Mn), % 7.5 to 9.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0 to 1.0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 1.5
Silicon (Si), % 0 to 0.75
0 to 0.0050
Sulfur (S), % 0 to 0.030
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7