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ACI-ASTM CD4MCuN Steel vs. AISI 204 Stainless Steel

Both ACI-ASTM CD4MCuN steel and AISI 204 stainless steel are iron alloys. They have 82% 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 AISI 204 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
23 to 39
Fatigue Strength, MPa 340
320 to 720
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
730 to 1100
Tensile Strength: Yield (Proof), MPa 550
380 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
850
Melting Completion (Liquidus), °C 1420
1410
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.4
Embodied Energy, MJ/kg 49
35
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
240 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 760
360 to 2940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
27 to 40
Strength to Weight: Bending, points 24
24 to 31
Thermal Diffusivity, mm2/s 4.5
4.1
Thermal Shock Resistance, points 21
16 to 24

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
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
69.6 to 76.4
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 1.7 to 2.3
0
Nickel (Ni), % 4.7 to 6.0
1.5 to 3.0
Nitrogen (N), % 0.1 to 0.25
0.15 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030