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EN 1.4971 Stainless Steel vs. C84400 Valve Metal

EN 1.4971 stainless steel belongs to the iron alloys classification, while C84400 valve metal belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Elongation at Break, % 34
19
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
39
Tensile Strength: Ultimate (UTS), MPa 800
230
Tensile Strength: Yield (Proof), MPa 340
110

Thermal Properties

Latent Heat of Fusion, J/g 300
180
Maximum Temperature: Mechanical, °C 1100
160
Melting Completion (Liquidus), °C 1460
1000
Melting Onset (Solidus), °C 1410
840
Specific Heat Capacity, J/kg-K 450
370
Thermal Conductivity, W/m-K 13
72
Thermal Expansion, µm/m-K 15
19

Otherwise Unclassified Properties

Base Metal Price, % relative 70
29
Density, g/cm3 8.4
8.8
Embodied Carbon, kg CO2/kg material 7.6
2.8
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
36
Resilience: Unit (Modulus of Resilience), kJ/m3 280
58
Stiffness to Weight: Axial, points 14
6.6
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 26
7.2
Strength to Weight: Bending, points 23
9.4
Thermal Diffusivity, mm2/s 3.4
22
Thermal Shock Resistance, points 19
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
78 to 82
Iron (Fe), % 24.3 to 37.1
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0 to 1.0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 1.5
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0 to 0.015
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7