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ACI-ASTM CD4MCuN Steel vs. EN 1.4424 Stainless Steel

Both ACI-ASTM CD4MCuN steel and EN 1.4424 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCuN steel and the bottom bar is EN 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
28
Fatigue Strength, MPa 340
350 to 370
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 770
800
Tensile Strength: Yield (Proof), MPa 550
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 13
12

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 18
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.4
Embodied Energy, MJ/kg 49
46
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 35
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 760
580 to 640
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
29
Strength to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 4.5
3.5
Thermal Shock Resistance, points 21
23

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
18 to 19
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
68.6 to 72.4
Manganese (Mn), % 0 to 1.0
1.2 to 2.0
Molybdenum (Mo), % 1.7 to 2.3
2.5 to 3.0
Nickel (Ni), % 4.7 to 6.0
4.5 to 5.2
Nitrogen (N), % 0.1 to 0.25
0.050 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.015