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ACI-ASTM CD4MCuN Steel vs. S44627 Stainless Steel

Both ACI-ASTM CD4MCuN steel and S44627 stainless steel are iron alloys. They have a moderately high 90% 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 CD4MCuN steel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
24
Fatigue Strength, MPa 340
200
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 770
490
Tensile Strength: Yield (Proof), MPa 550
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
470
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.9
Embodied Energy, MJ/kg 49
41
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 35
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 760
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 4.5
4.6
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.010
Chromium (Cr), % 24.5 to 26.5
25 to 27.5
Copper (Cu), % 2.7 to 3.3
0 to 0.2
Iron (Fe), % 59.5 to 66.3
69.2 to 74.2
Manganese (Mn), % 0 to 1.0
0 to 0.4
Molybdenum (Mo), % 1.7 to 2.3
0.75 to 1.5
Nickel (Ni), % 4.7 to 6.0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0.1 to 0.25
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.020