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ACI-ASTM CE3MN Steel vs. S21600 Stainless Steel

Both ACI-ASTM CE3MN steel and S21600 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE3MN steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 20
46
Fatigue Strength, MPa 380
360
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 770
710
Tensile Strength: Yield (Proof), MPa 590
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 21
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.2
3.6
Embodied Energy, MJ/kg 58
50
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 43
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270
Resilience: Unit (Modulus of Resilience), kJ/m3 840
370
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 24
23
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 24 to 26
17.5 to 22
Iron (Fe), % 58.1 to 65.9
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 4.0 to 5.0
2.0 to 3.0
Nickel (Ni), % 6.0 to 8.0
5.0 to 7.0
Nitrogen (N), % 0.1 to 0.3
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030