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ACI-ASTM CD3MCuN Steel vs. S45503 Stainless Steel

Both ACI-ASTM CD3MCuN steel and S45503 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD3MCuN steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
4.6 to 6.8
Fatigue Strength, MPa 370
710 to 800
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 790
1610 to 1850
Tensile Strength: Yield (Proof), MPa 500
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
640
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 20
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.9
3.4
Embodied Energy, MJ/kg 54
48
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 41
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
82 to 110
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
57 to 65
Strength to Weight: Bending, points 24
39 to 43
Thermal Shock Resistance, points 22
56 to 64

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 24 to 26.7
11 to 12.5
Copper (Cu), % 1.4 to 1.9
1.5 to 2.5
Iron (Fe), % 58.2 to 65.9
72.4 to 78.9
Manganese (Mn), % 0 to 1.2
0 to 0.5
Molybdenum (Mo), % 2.9 to 3.8
0 to 0.5
Nickel (Ni), % 5.6 to 6.7
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0.22 to 0.33
0
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 1.1
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4