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ACI-ASTM CF8 Steel vs. EN 1.7711 Steel

Both ACI-ASTM CF8 steel and EN 1.7711 steel are iron alloys. They have 71% 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 EN 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
16 to 22
Fatigue Strength, MPa 260
290 to 520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
690 to 930
Tensile Strength: Yield (Proof), MPa 260
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 300
250
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
33
Thermal Expansion, µm/m-K 15
11

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
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.3
Embodied Energy, MJ/kg 44
32
Embodied Water, L/kg 150
54

Common Calculations

PREN (Pitting Resistance) 20
2.9
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 160
430 to 1690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
24 to 33
Strength to Weight: Bending, points 19
22 to 27
Thermal Diffusivity, mm2/s 4.3
8.9
Thermal Shock Resistance, points 13
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.080
0.36 to 0.44
Chromium (Cr), % 18 to 21
0.9 to 1.2
Iron (Fe), % 63.8 to 74
96 to 97.5
Manganese (Mn), % 0 to 1.5
0.45 to 0.85
Molybdenum (Mo), % 0 to 0.5
0.5 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 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35