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ACI-ASTM CF3 Steel vs. S21460 Stainless Steel

Both ACI-ASTM CF3 steel and S21460 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3 steel and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 60
46
Fatigue Strength, MPa 270
390
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 510
830
Tensile Strength: Yield (Proof), MPa 250
430

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 960
920
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1450
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
18

Otherwise Unclassified Properties

Base Metal Price, % relative 16
14
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.2
3.0
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 20
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
320
Resilience: Unit (Modulus of Resilience), kJ/m3 160
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
30
Strength to Weight: Bending, points 18
26
Thermal Shock Resistance, points 11
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 17 to 21
17 to 19
Iron (Fe), % 62.9 to 75
57.3 to 63.7
Manganese (Mn), % 0 to 1.5
14 to 16
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030