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ACI-ASTM CF16F Steel vs. ASTM Grade HI Steel

Both ACI-ASTM CF16F steel and ASTM grade HI steel are iron alloys. They have 85% 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 ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 50
11
Fatigue Strength, MPa 270
150
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 530
550
Tensile Strength: Yield (Proof), MPa 280
270

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 1400
1350
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.4
4.1
Embodied Energy, MJ/kg 47
59
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 22
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
52
Resilience: Unit (Modulus of Resilience), kJ/m3 190
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 4.3
3.9
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0 to 0.16
0.2 to 0.5
Chromium (Cr), % 18 to 21
26 to 30
Iron (Fe), % 61.3 to 72.8
46.9 to 59.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 1.5
0 to 0.5
Nickel (Ni), % 9.0 to 12
14 to 18
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 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040