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S42030 Stainless Steel vs. ACI-ASTM CD3MCuN Steel

Both S42030 stainless steel and ACI-ASTM CD3MCuN steel are iron alloys. They have 80% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S42030 stainless steel and the bottom bar is ACI-ASTM CD3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
29
Fatigue Strength, MPa 250
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 670
790
Tensile Strength: Yield (Proof), MPa 410
500

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 780
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 28
15
Thermal Expansion, µm/m-K 10
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.9
Embodied Energy, MJ/kg 34
54
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 20
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
200
Resilience: Unit (Modulus of Resilience), kJ/m3 440
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 7.7
4.1
Thermal Shock Resistance, points 24
22

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 12 to 14
24 to 26.7
Copper (Cu), % 2.0 to 3.0
1.4 to 1.9
Iron (Fe), % 77.6 to 85
58.2 to 65.9
Manganese (Mn), % 0 to 1.0
0 to 1.2
Molybdenum (Mo), % 1.0 to 3.0
2.9 to 3.8
Nickel (Ni), % 0
5.6 to 6.7
Nitrogen (N), % 0
0.22 to 0.33
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.1
Sulfur (S), % 0 to 0.030
0 to 0.030