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ACI-ASTM CF8 Steel vs. ASTM A387 Grade 11 Steel

Both ACI-ASTM CF8 steel and ASTM A387 grade 11 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 (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8 steel and the bottom bar is ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
25
Fatigue Strength, MPa 260
200 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
500 to 600
Tensile Strength: Yield (Proof), MPa 260
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 980
430
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.6
Embodied Energy, MJ/kg 44
21
Embodied Water, L/kg 150
53

Common Calculations

PREN (Pitting Resistance) 20
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
100 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
200 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
18 to 21
Strength to Weight: Bending, points 19
18 to 20
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 13
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.080
0.050 to 0.17
Chromium (Cr), % 18 to 21
1.0 to 1.5
Iron (Fe), % 63.8 to 74
96.2 to 97.6
Manganese (Mn), % 0 to 1.5
0.4 to 0.65
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.65
Nickel (Ni), % 8.0 to 11
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.5 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.025