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ACI-ASTM CA15 Steel vs. EN 1.7720 Steel

Both ACI-ASTM CA15 steel and EN 1.7720 steel are iron alloys. They have 87% 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 CA15 steel and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 370
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 700
590
Tensile Strength: Yield (Proof), MPa 570
340

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 750
410
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
2.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 100
51

Common Calculations

PREN (Pitting Resistance) 14
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
97
Resilience: Unit (Modulus of Resilience), kJ/m3 820
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 26
17

Alloy Composition

Carbon (C), % 0 to 0.15
0.1 to 0.15
Chromium (Cr), % 11.5 to 14
0.3 to 0.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 81.8 to 88.5
96.6 to 98.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.4 to 0.6
Nickel (Ni), % 0 to 1.0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3