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EN 1.4417 Stainless Steel vs. ACI-ASTM CD3MWCuN Steel

Both EN 1.4417 stainless steel and ACI-ASTM CD3MWCuN steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4417 stainless steel and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
29
Fatigue Strength, MPa 380
370
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 730
790
Tensile Strength: Yield (Proof), MPa 550
500

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 21
22
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.1
4.2
Embodied Energy, MJ/kg 57
58
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 41
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
200
Resilience: Unit (Modulus of Resilience), kJ/m3 730
620
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.6
4.2
Thermal Shock Resistance, points 20
22

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24 to 26
24 to 26
Copper (Cu), % 0 to 1.0
0.5 to 1.0
Iron (Fe), % 56.7 to 66.9
56.6 to 65.3
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 3.0 to 4.0
3.0 to 4.0
Nickel (Ni), % 6.0 to 8.5
6.5 to 8.5
Nitrogen (N), % 0.15 to 0.25
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 0 to 1.0
0.5 to 1.0