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ACI-ASTM CD4MCu Steel vs. S45500 Stainless Steel

Both ACI-ASTM CD4MCu steel and S45500 stainless steel are iron alloys. They have 83% 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 CD4MCu steel and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
3.4 to 11
Fatigue Strength, MPa 340
570 to 890
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 770
1370 to 1850
Tensile Strength: Yield (Proof), MPa 550
1240 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
620
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
17
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
3.8
Embodied Energy, MJ/kg 49
57
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 32
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
45 to 190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
48 to 65
Strength to Weight: Bending, points 24
35 to 42
Thermal Shock Resistance, points 21
48 to 64

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.050
Chromium (Cr), % 24.5 to 26.5
11 to 12.5
Copper (Cu), % 2.8 to 3.3
1.5 to 2.5
Iron (Fe), % 59.9 to 66.3
71.5 to 79.2
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.5
Nickel (Ni), % 4.8 to 6.0
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4