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ACI-ASTM CF8M Steel vs. EN 1.8503 Steel

Both ACI-ASTM CF8M steel and EN 1.8503 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 (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8M steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
16
Fatigue Strength, MPa 280
600
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 540
1000
Tensile Strength: Yield (Proof), MPa 290
910

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
440
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
41
Thermal Expansion, µm/m-K 16
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 19
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.3
Embodied Energy, MJ/kg 53
33
Embodied Water, L/kg 160
57

Common Calculations

PREN (Pitting Resistance) 28
3.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
150
Resilience: Unit (Modulus of Resilience), kJ/m3 210
2200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
35
Strength to Weight: Bending, points 19
28
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 12
29

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.080
0.16 to 0.24
Chromium (Cr), % 18 to 21
1.2 to 1.5
Iron (Fe), % 60.3 to 71
95.8 to 97.5
Manganese (Mn), % 0 to 1.5
0.4 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
0.65 to 0.8
Nickel (Ni), % 9.0 to 12
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 0.035
Vanadium (V), % 0
0.25 to 0.35