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ASTM A387 Grade 2 Steel vs. ACI-ASTM CF16Fa Steel

Both ASTM A387 grade 2 steel and ACI-ASTM CF16Fa steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 2 steel and the bottom bar is ACI-ASTM CF16Fa steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
28
Fatigue Strength, MPa 190 to 250
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 470 to 550
540
Tensile Strength: Yield (Proof), MPa 260 to 350
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
980
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
3.3
Embodied Energy, MJ/kg 20
47
Embodied Water, L/kg 50
150

Common Calculations

PREN (Pitting Resistance) 2.4
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 320
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 20
19
Strength to Weight: Bending, points 17 to 19
19
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 14 to 16
12

Alloy Composition

Carbon (C), % 0.050 to 0.21
0 to 0.16
Chromium (Cr), % 0.5 to 0.8
18 to 21
Iron (Fe), % 97.1 to 98.3
62.1 to 72.4
Manganese (Mn), % 0.55 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.45 to 0.6
0.4 to 0.8
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.025
0.2 to 0.4