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ACI-ASTM CE8MN Steel vs. S44700 Stainless Steel

Both ACI-ASTM CE8MN steel and S44700 stainless steel are iron alloys. They have 89% 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 CE8MN steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 29
23
Fatigue Strength, MPa 370
300
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
82
Tensile Strength: Ultimate (UTS), MPa 750
600
Tensile Strength: Yield (Proof), MPa 500
450

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 21
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.6
Embodied Energy, MJ/kg 58
49
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 40
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 620
480
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
21
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.010
Chromium (Cr), % 22.5 to 25.5
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 56 to 66.4
64.9 to 68.5
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 3.0 to 4.5
3.5 to 4.2
Nickel (Ni), % 8.0 to 11
0 to 0.15
Nitrogen (N), % 0.1 to 0.3
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.2
Sulfur (S), % 0 to 0.040
0 to 0.020