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SAE-AISI 1080 Steel vs. EN 1.4659 Stainless Steel

Both SAE-AISI 1080 steel and EN 1.4659 stainless steel are iron alloys. They have 41% of their average alloy composition in common. There are 31 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 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
49
Fatigue Strength, MPa 300 to 360
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
81
Shear Strength, MPa 460 to 520
640
Tensile Strength: Ultimate (UTS), MPa 770 to 870
900
Tensile Strength: Yield (Proof), MPa 480 to 590
480

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 11
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.4
6.5
Embodied Energy, MJ/kg 19
89
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
370
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 31
31
Strength to Weight: Bending, points 24 to 26
25
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 25 to 29
19

Alloy Composition

Carbon (C), % 0.75 to 0.88
0 to 0.020
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 98.1 to 98.7
35.7 to 45.7
Manganese (Mn), % 0.6 to 0.9
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0 to 0.050
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5