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ACI-ASTM CD4MCuN Steel vs. EN 1.4823 Stainless Steel

Both ACI-ASTM CD4MCuN steel and EN 1.4823 stainless steel are iron alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CD4MCuN steel and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
3.4
Fatigue Strength, MPa 340
130
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 770
620
Tensile Strength: Yield (Proof), MPa 550
290

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
16
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.5
3.0
Embodied Energy, MJ/kg 49
43
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 35
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
17
Resilience: Unit (Modulus of Resilience), kJ/m3 760
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 28
23
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 4.5
4.5
Thermal Shock Resistance, points 21
17

Alloy Composition

Carbon (C), % 0 to 0.040
0.3 to 0.5
Chromium (Cr), % 24.5 to 26.5
25 to 28
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
60.9 to 70.7
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 1.7 to 2.3
0 to 0.5
Nickel (Ni), % 4.7 to 6.0
3.0 to 6.0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.0 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.030