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ACI-ASTM CA40 Steel vs. EN 1.6579 Steel

Both ACI-ASTM CA40 steel and EN 1.6579 steel are iron alloys. They have 88% 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 CA40 steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
260 to 290
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
11 to 14
Fatigue Strength, MPa 460
380 to 570
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 910
850 to 980
Tensile Strength: Yield (Proof), MPa 860
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
440
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1500
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
3.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.7
Embodied Energy, MJ/kg 28
22
Embodied Water, L/kg 100
56

Common Calculations

PREN (Pitting Resistance) 14
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
950 to 2210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 33
30 to 35
Strength to Weight: Bending, points 27
25 to 28
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 33
25 to 29

Alloy Composition

Carbon (C), % 0.2 to 0.4
0.32 to 0.38
Chromium (Cr), % 11.5 to 14
1.4 to 1.7
Iron (Fe), % 81.5 to 88.3
94.2 to 96.1
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.35
Nickel (Ni), % 0 to 1.0
1.4 to 1.7
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030