MakeItFrom.com
Menu (ESC)

ACI-ASTM CN3MN Steel vs. S20431 Stainless Steel

Both ACI-ASTM CN3MN steel and S20431 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 39
46
Fatigue Strength, MPa 250
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 620
710
Tensile Strength: Yield (Proof), MPa 300
350

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 33
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.2
2.5
Embodied Energy, MJ/kg 84
36
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 46
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
270
Resilience: Unit (Modulus of Resilience), kJ/m3 210
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.4
4.0
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 20 to 22
17 to 18
Copper (Cu), % 0 to 0.75
1.5 to 3.5
Iron (Fe), % 41.4 to 50.3
66.1 to 74.4
Manganese (Mn), % 0 to 2.0
5.0 to 7.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
2.0 to 4.0
Nitrogen (N), % 0.18 to 0.26
0.1 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030