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ACI-ASTM CD4MCu Steel vs. AISI 415 Stainless Steel

Both ACI-ASTM CD4MCu steel and AISI 415 stainless steel are iron alloys. Both are furnished in the normalized and tempered condition. 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 (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
17
Fatigue Strength, MPa 340
430
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 770
900
Tensile Strength: Yield (Proof), MPa 550
700

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
780
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 18
11
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.5
Embodied Energy, MJ/kg 49
35
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 32
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 760
1250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
32
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 4.5
6.4
Thermal Shock Resistance, points 21
33

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.050
Chromium (Cr), % 24.5 to 26.5
11.5 to 14
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
77.8 to 84
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
0.5 to 1.0
Nickel (Ni), % 4.8 to 6.0
3.5 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030