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EN 1.4821 Stainless Steel vs. ACI-ASTM CD3MCuN Steel

Both EN 1.4821 stainless steel and ACI-ASTM CD3MCuN steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4821 stainless steel and the bottom bar is ACI-ASTM CD3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
29
Fatigue Strength, MPa 280
370
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 730
790
Tensile Strength: Yield (Proof), MPa 450
500

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 15
20
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.9
Embodied Energy, MJ/kg 41
54
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 26
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
200
Resilience: Unit (Modulus of Resilience), kJ/m3 500
620
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.6
4.1
Thermal Shock Resistance, points 21
22

Alloy Composition

Carbon (C), % 0.1 to 0.2
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
24 to 26.7
Copper (Cu), % 0
1.4 to 1.9
Iron (Fe), % 64.2 to 71.1
58.2 to 65.9
Manganese (Mn), % 0 to 2.0
0 to 1.2
Molybdenum (Mo), % 0
2.9 to 3.8
Nickel (Ni), % 3.5 to 5.5
5.6 to 6.7
Nitrogen (N), % 0 to 0.1
0.22 to 0.33
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.8 to 1.5
0 to 1.1
Sulfur (S), % 0 to 0.015
0 to 0.030