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EN 1.7779 Steel vs. SAE-AISI 1524 Steel

Both EN 1.7779 steel and SAE-AISI 1524 steel are iron alloys. They have a very high 95% 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 EN 1.7779 steel and the bottom bar is SAE-AISI 1524 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
14 to 22
Fatigue Strength, MPa 430
230 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 500
360 to 390
Tensile Strength: Ultimate (UTS), MPa 810
570 to 650
Tensile Strength: Yield (Proof), MPa 660
320 to 540

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 470
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 64
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
270 to 760
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
20 to 23
Strength to Weight: Bending, points 25
19 to 21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 23
18 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.17 to 0.23
0.19 to 0.25
Chromium (Cr), % 3.0 to 3.3
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 93.8 to 95.4
98 to 98.5
Manganese (Mn), % 0.3 to 0.5
1.4 to 1.7
Molybdenum (Mo), % 0.5 to 0.6
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.010
0 to 0.050
Vanadium (V), % 0.45 to 0.55
0