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ACI-ASTM CD4MCu Steel vs. S46500 Stainless Steel

Both ACI-ASTM CD4MCu steel and S46500 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 (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
2.3 to 14
Fatigue Strength, MPa 340
550 to 890
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 770
1260 to 1930
Tensile Strength: Yield (Proof), MPa 550
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
680
Maximum Temperature: Mechanical, °C 1100
780
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
3.6
Embodied Energy, MJ/kg 49
51
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 32
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
43 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
44 to 68
Strength to Weight: Bending, points 24
33 to 44
Thermal Shock Resistance, points 21
44 to 67

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.020
Chromium (Cr), % 24.5 to 26.5
11 to 12.5
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
72.6 to 76.1
Manganese (Mn), % 0 to 1.0
0 to 0.25
Molybdenum (Mo), % 1.8 to 2.3
0.75 to 1.3
Nickel (Ni), % 4.8 to 6.0
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8