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SAE-AISI 1340 Steel vs. S82441 Stainless Steel

Both SAE-AISI 1340 steel and S82441 stainless steel are iron alloys. They have 68% 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 SAE-AISI 1340 steel and the bottom bar is S82441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 210
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 23
28
Fatigue Strength, MPa 220 to 390
400
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Shear Strength, MPa 340 to 440
490
Tensile Strength: Ultimate (UTS), MPa 540 to 730
760
Tensile Strength: Yield (Proof), MPa 300 to 620
550

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1090
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
16
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 48
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 1040
740
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 26
27
Strength to Weight: Bending, points 19 to 23
24
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 17 to 23
21

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 97.2 to 97.9
62.6 to 70.2
Manganese (Mn), % 1.6 to 1.9
2.5 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
3.0 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.0050