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ACI-ASTM CF16F Steel vs. ACI-ASTM CA40F Steel

Both ACI-ASTM CF16F steel and ACI-ASTM CA40F steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CF16F steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
13
Fatigue Strength, MPa 270
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 530
770
Tensile Strength: Yield (Proof), MPa 280
550

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 980
750
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
27
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.4
2.0
Embodied Energy, MJ/kg 47
28
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 22
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
94
Resilience: Unit (Modulus of Resilience), kJ/m3 190
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.3
7.2
Thermal Shock Resistance, points 12
28

Alloy Composition

Carbon (C), % 0 to 0.16
0.2 to 0.4
Chromium (Cr), % 18 to 21
11.5 to 14
Iron (Fe), % 61.3 to 72.8
81.6 to 88.3
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0 to 1.5
0 to 0.5
Nickel (Ni), % 9.0 to 12
0 to 1.0
Phosphorus (P), % 0 to 0.17
0 to 0.040
Selenium (Se), % 0.2 to 0.35
0
Silicon (Si), % 0 to 2.0
0 to 1.5
Sulfur (S), % 0 to 0.040
0.2 to 0.4