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S44700 Stainless Steel vs. ACI-ASTM CN3MN Steel

Both S44700 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 71% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S44700 stainless steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 23
39
Fatigue Strength, MPa 300
250
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 82
80
Tensile Strength: Ultimate (UTS), MPa 600
620
Tensile Strength: Yield (Proof), MPa 450
300

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 18
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.6
6.2
Embodied Energy, MJ/kg 49
84
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 42
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 480
210
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 28 to 30
20 to 22
Copper (Cu), % 0 to 0.15
0 to 0.75
Iron (Fe), % 64.9 to 68.5
41.4 to 50.3
Manganese (Mn), % 0 to 0.3
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.2
6.0 to 7.0
Nickel (Ni), % 0 to 0.15
23.5 to 25.5
Nitrogen (N), % 0 to 0.020
0.18 to 0.26
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010