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ACI-ASTM CD3MN Steel vs. S42030 Stainless Steel

Both ACI-ASTM CD3MN steel and S42030 stainless steel are iron alloys. They have 84% 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 ACI-ASTM CD3MN steel and the bottom bar is S42030 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
16
Fatigue Strength, MPa 340
250
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 710
670
Tensile Strength: Yield (Proof), MPa 460
410

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1060
780
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
28
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
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.5
Embodied Energy, MJ/kg 50
34
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 35
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
92
Resilience: Unit (Modulus of Resilience), kJ/m3 530
440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
24
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.3
7.7
Thermal Shock Resistance, points 20
24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.3
Chromium (Cr), % 21 to 23.5
12 to 14
Copper (Cu), % 0 to 1.0
2.0 to 3.0
Iron (Fe), % 62.6 to 71.9
77.6 to 85
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
1.0 to 3.0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030