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EN 1.4029 Stainless Steel vs. ACI-ASTM CD3MWCuN Steel

Both EN 1.4029 stainless steel and ACI-ASTM CD3MWCuN steel are iron alloys. They have 75% of their average alloy composition in common. 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 1.4029 stainless steel and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 20
29
Fatigue Strength, MPa 270 to 400
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 700 to 930
790
Tensile Strength: Yield (Proof), MPa 410 to 740
500

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.2
Embodied Energy, MJ/kg 28
58
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1410
620
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 33
28
Strength to Weight: Bending, points 23 to 27
24
Thermal Diffusivity, mm2/s 8.1
4.2
Thermal Shock Resistance, points 26 to 34
22

Alloy Composition

Carbon (C), % 0.25 to 0.32
0 to 0.030
Chromium (Cr), % 12 to 13.5
24 to 26
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 82.8 to 87.6
56.6 to 65.3
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.6
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.25
0 to 0.025
Tungsten (W), % 0
0.5 to 1.0