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ACI-ASTM CF16Fa Steel vs. ASTM Grade HE Steel

Both ACI-ASTM CF16Fa steel and ASTM grade HE steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CF16Fa steel and the bottom bar is ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
10
Fatigue Strength, MPa 170
160
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 540
670
Tensile Strength: Yield (Proof), MPa 230
310

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
3.5
Embodied Energy, MJ/kg 47
50
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 21
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
56
Resilience: Unit (Modulus of Resilience), kJ/m3 140
240
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.2
3.6
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.16
0.2 to 0.5
Chromium (Cr), % 18 to 21
26 to 30
Iron (Fe), % 62.1 to 72.4
53.9 to 65.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.8
0 to 0.5
Nickel (Ni), % 9.0 to 12
8.0 to 11
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 2.0
Sulfur (S), % 0.2 to 0.4
0 to 0.040