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N08020 Stainless Steel vs. SAE-AISI 1080 Steel

Both N08020 stainless steel and SAE-AISI 1080 steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. 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 N08020 stainless steel and the bottom bar is SAE-AISI 1080 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 34
11
Fatigue Strength, MPa 210 to 240
300 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 380 to 410
460 to 520
Tensile Strength: Ultimate (UTS), MPa 610 to 620
770 to 870
Tensile Strength: Yield (Proof), MPa 270 to 420
480 to 590

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
9.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
11

Otherwise Unclassified Properties

Base Metal Price, % relative 38
1.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.6
1.4
Embodied Energy, MJ/kg 92
19
Embodied Water, L/kg 220
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
80 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
610 to 920
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
27 to 31
Strength to Weight: Bending, points 20
24 to 26
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 15
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.070
0.75 to 0.88
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 29.9 to 44
98.1 to 98.7
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 32 to 38
0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.035
0 to 0.050