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S32906 Stainless Steel vs. ACI-ASTM CD4MCuN Steel

Both S32906 stainless steel and ACI-ASTM CD4MCuN steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S32906 stainless steel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
18
Fatigue Strength, MPa 460
340
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 850
770
Tensile Strength: Yield (Proof), MPa 620
550

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 13
17
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.7
3.5
Embodied Energy, MJ/kg 52
49
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 41
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
130
Resilience: Unit (Modulus of Resilience), kJ/m3 950
760
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
28
Strength to Weight: Bending, points 26
24
Thermal Diffusivity, mm2/s 3.6
4.5
Thermal Shock Resistance, points 23
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 28 to 30
24.5 to 26.5
Copper (Cu), % 0 to 0.8
2.7 to 3.3
Iron (Fe), % 56.6 to 63.6
59.5 to 66.3
Manganese (Mn), % 0.8 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.6
1.7 to 2.3
Nickel (Ni), % 5.8 to 7.5
4.7 to 6.0
Nitrogen (N), % 0.3 to 0.4
0.1 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040