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ACI-ASTM CD4MCuN Steel vs. EN 1.4418 Stainless Steel

Both ACI-ASTM CD4MCuN steel and EN 1.4418 stainless steel are iron alloys. They have 86% 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 ACI-ASTM CD4MCuN steel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
16 to 20
Fatigue Strength, MPa 340
350 to 480
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
860 to 1000
Tensile Strength: Yield (Proof), MPa 550
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
10

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
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 49
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 760
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
31 to 36
Strength to Weight: Bending, points 24
26 to 28
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 21
31 to 36

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.060
Chromium (Cr), % 24.5 to 26.5
15 to 17
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
73.2 to 80.2
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 1.7 to 2.3
0.8 to 1.5
Nickel (Ni), % 4.7 to 6.0
4.0 to 6.0
Nitrogen (N), % 0.1 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.015