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SAE-AISI 1078 Steel vs. S32506 Stainless Steel

Both SAE-AISI 1078 steel and S32506 stainless steel are iron alloys. They have 65% 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 1078 steel and the bottom bar is S32506 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
21
Fatigue Strength, MPa 270 to 350
330
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Shear Strength, MPa 440 to 470
440
Tensile Strength: Ultimate (UTS), MPa 730 to 780
710
Tensile Strength: Yield (Proof), MPa 430 to 570
500

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 18
54
Embodied Water, L/kg 45
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 90
130
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 860
620
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 28
25
Strength to Weight: Bending, points 23 to 24
23
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 25 to 26
19

Alloy Composition

Carbon (C), % 0.72 to 0.85
0 to 0.030
Chromium (Cr), % 0
24 to 26
Iron (Fe), % 98.5 to 99
60.8 to 67.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0
5.5 to 7.2
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.9
Sulfur (S), % 0 to 0.050
0 to 0.015
Tungsten (W), % 0
0.050 to 0.3