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SAE-AISI 9310 Steel vs. S32050 Stainless Steel

Both SAE-AISI 9310 steel and S32050 stainless steel are iron alloys. They have 53% 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 9310 steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540 to 610
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17 to 19
46
Fatigue Strength, MPa 300 to 390
340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 510 to 570
540
Tensile Strength: Ultimate (UTS), MPa 820 to 910
770
Tensile Strength: Yield (Proof), MPa 450 to 570
370

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.8
6.0
Embodied Energy, MJ/kg 24
81
Embodied Water, L/kg 57
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 150
290
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 860
330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
27
Strength to Weight: Bending, points 25 to 27
23
Thermal Diffusivity, mm2/s 13
3.3
Thermal Shock Resistance, points 24 to 27
17

Alloy Composition

Carbon (C), % 0.080 to 0.13
0 to 0.030
Chromium (Cr), % 1.0 to 1.4
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 93.8 to 95.2
43.1 to 51.8
Manganese (Mn), % 0.45 to 0.65
0 to 1.5
Molybdenum (Mo), % 0.080 to 0.15
6.0 to 6.6
Nickel (Ni), % 3.0 to 3.5
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.2 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.012
0 to 0.020