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SAE-AISI 1080 Steel vs. EN 1.7725 Steel

Both SAE-AISI 1080 steel and EN 1.7725 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
250 to 300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
14
Fatigue Strength, MPa 300 to 360
390 to 550
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 770 to 870
830 to 1000
Tensile Strength: Yield (Proof), MPa 480 to 590
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 19
24
Embodied Water, L/kg 46
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
980 to 1940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 31
29 to 35
Strength to Weight: Bending, points 24 to 26
25 to 28
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 25 to 29
24 to 29

Alloy Composition

Carbon (C), % 0.75 to 0.88
0.27 to 0.34
Chromium (Cr), % 0
1.3 to 1.7
Iron (Fe), % 98.1 to 98.7
95.7 to 97.5
Manganese (Mn), % 0.6 to 0.9
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0 to 0.050
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15

Comparable Variants