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ACI-ASTM CD3MN Steel vs. S42300 Stainless Steel

Both ACI-ASTM CD3MN steel and S42300 stainless steel are iron alloys. They have 83% 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 CD3MN steel and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
9.1
Fatigue Strength, MPa 340
440
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 710
1100
Tensile Strength: Yield (Proof), MPa 460
850

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1060
750
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.2
Embodied Energy, MJ/kg 50
44
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 35
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
93
Resilience: Unit (Modulus of Resilience), kJ/m3 530
1840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
39
Strength to Weight: Bending, points 23
30
Thermal Diffusivity, mm2/s 4.3
6.8
Thermal Shock Resistance, points 20
40

Alloy Composition

Carbon (C), % 0 to 0.030
0.27 to 0.32
Chromium (Cr), % 21 to 23.5
11 to 12
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 62.6 to 71.9
82 to 85.1
Manganese (Mn), % 0 to 1.5
1.0 to 1.4
Molybdenum (Mo), % 2.5 to 3.5
2.5 to 3.0
Nickel (Ni), % 4.5 to 6.5
0 to 0.5
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3