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ACI-ASTM CF8C Steel vs. EN 1.7707 Steel

Both ACI-ASTM CF8C steel and EN 1.7707 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 (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8C steel and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
11
Fatigue Strength, MPa 220
500
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 530
1010
Tensile Strength: Yield (Proof), MPa 260
800

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 980
460
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 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.9
Embodied Energy, MJ/kg 53
27
Embodied Water, L/kg 150
58

Common Calculations

PREN (Pitting Resistance) 20
3.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
36
Strength to Weight: Bending, points 19
29
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 11
29

Alloy Composition

Carbon (C), % 0 to 0.080
0.26 to 0.34
Chromium (Cr), % 18 to 21
2.3 to 2.7
Iron (Fe), % 61.8 to 73
94.7 to 96.8
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.25
Nickel (Ni), % 9.0 to 12
0 to 0.6
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0
0.1 to 0.2