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EN 1.4945 Stainless Steel vs. C84400 Valve Metal

EN 1.4945 stainless steel belongs to the iron alloys classification, while C84400 valve metal belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 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, % 19 to 34
19
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
39
Tensile Strength: Ultimate (UTS), MPa 640 to 740
230
Tensile Strength: Yield (Proof), MPa 290 to 550
110

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Maximum Temperature: Mechanical, °C 920
160
Melting Completion (Liquidus), °C 1490
1000
Melting Onset (Solidus), °C 1440
840
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 14
72
Thermal Expansion, µm/m-K 17
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
16
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
29
Density, g/cm3 8.1
8.8
Embodied Carbon, kg CO2/kg material 5.0
2.8
Embodied Energy, MJ/kg 73
46
Embodied Water, L/kg 150
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
36
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
58
Stiffness to Weight: Axial, points 14
6.6
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 22 to 25
7.2
Strength to Weight: Bending, points 20 to 22
9.4
Thermal Diffusivity, mm2/s 3.7
22
Thermal Shock Resistance, points 14 to 16
8.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
78 to 82
Iron (Fe), % 57.9 to 65.7
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 15.5 to 17.5
0 to 1.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 1.5
Silicon (Si), % 0.3 to 0.6
0 to 0.0050
Sulfur (S), % 0 to 0.015
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Tungsten (W), % 2.5 to 3.5
0
Zinc (Zn), % 0
7.0 to 10
Residuals, % 0
0 to 0.7