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ACI-ASTM CF16F Steel vs. S31266 Stainless Steel

Both ACI-ASTM CF16F steel and S31266 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 ACI-ASTM CF16F steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 50
40
Fatigue Strength, MPa 270
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 530
860
Tensile Strength: Yield (Proof), MPa 280
470

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.4
6.5
Embodied Energy, MJ/kg 47
89
Embodied Water, L/kg 150
220

Common Calculations

PREN (Pitting Resistance) 22
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
290
Resilience: Unit (Modulus of Resilience), kJ/m3 190
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.3
3.1
Thermal Shock Resistance, points 12
18

Alloy Composition

Carbon (C), % 0 to 0.16
0 to 0.030
Chromium (Cr), % 18 to 21
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 61.3 to 72.8
34.1 to 46
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 0 to 1.5
5.2 to 6.2
Nickel (Ni), % 9.0 to 12
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.17
0 to 0.035
Selenium (Se), % 0.2 to 0.35
0
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5