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SAE-AISI 1070 Steel vs. N08320 Stainless Steel

Both SAE-AISI 1070 steel and N08320 stainless steel are iron alloys. They have 46% 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 1070 steel and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 13
40
Fatigue Strength, MPa 270 to 350
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 380 to 460
400
Tensile Strength: Ultimate (UTS), MPa 640 to 760
580
Tensile Strength: Yield (Proof), MPa 420 to 560
220

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
4.9
Embodied Energy, MJ/kg 19
69
Embodied Water, L/kg 46
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
180
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 27
20
Strength to Weight: Bending, points 21 to 24
20
Thermal Diffusivity, mm2/s 14
3.3
Thermal Shock Resistance, points 21 to 25
13

Alloy Composition

Carbon (C), % 0.65 to 0.75
0 to 0.050
Chromium (Cr), % 0
21 to 23
Iron (Fe), % 98.3 to 98.8
40.4 to 50
Manganese (Mn), % 0.6 to 0.9
0 to 2.5
Nickel (Ni), % 0
25 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030