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S45000 Stainless Steel vs. ACI-ASTM CN3MN Steel

Both S45000 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 69% of their average alloy composition in common. There are 32 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 S45000 stainless steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 410
180
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 6.8 to 14
39
Fatigue Strength, MPa 330 to 650
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
620
Tensile Strength: Yield (Proof), MPa 580 to 1310
300

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 400
430
Maximum Temperature: Mechanical, °C 840
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.8
6.2
Embodied Energy, MJ/kg 39
84
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 17
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94 to 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 850 to 4400
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 35 to 50
21
Strength to Weight: Bending, points 28 to 36
20
Thermal Diffusivity, mm2/s 4.5
3.4
Thermal Shock Resistance, points 33 to 47
14

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 14 to 16
20 to 22
Copper (Cu), % 1.3 to 1.8
0 to 0.75
Iron (Fe), % 72.1 to 79.3
41.4 to 50.3
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.5 to 1.0
6.0 to 7.0
Nickel (Ni), % 5.0 to 7.0
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010