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SAE-AISI 9310 Steel vs. S39274 Stainless Steel

Both SAE-AISI 9310 steel and S39274 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9310 steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540 to 610
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17 to 19
17
Fatigue Strength, MPa 300 to 390
380
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 510 to 570
560
Tensile Strength: Ultimate (UTS), MPa 820 to 910
900
Tensile Strength: Yield (Proof), MPa 450 to 570
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.8
4.3
Embodied Energy, MJ/kg 24
60
Embodied Water, L/kg 57
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 150
140
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 860
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
32
Strength to Weight: Bending, points 25 to 27
26
Thermal Diffusivity, mm2/s 13
4.2
Thermal Shock Resistance, points 24 to 27
25

Alloy Composition

Carbon (C), % 0.080 to 0.13
0 to 0.030
Chromium (Cr), % 1.0 to 1.4
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 93.8 to 95.2
57 to 65.6
Manganese (Mn), % 0.45 to 0.65
0 to 1.0
Molybdenum (Mo), % 0.080 to 0.15
2.5 to 3.5
Nickel (Ni), % 3.0 to 3.5
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.015
0 to 0.030
Silicon (Si), % 0.2 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.012
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5