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SAE-AISI 9310 Steel vs. S41425 Stainless Steel

Both SAE-AISI 9310 steel and S41425 stainless steel are iron alloys. They have 83% 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 9310 steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540 to 610
280
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 19
17
Fatigue Strength, MPa 300 to 390
450
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 510 to 570
570
Tensile Strength: Ultimate (UTS), MPa 820 to 910
920
Tensile Strength: Yield (Proof), MPa 450 to 570
750

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
810
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
13
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.8
2.9
Embodied Energy, MJ/kg 24
40
Embodied Water, L/kg 57
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 150
150
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 860
1420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29 to 32
33
Strength to Weight: Bending, points 25 to 27
27
Thermal Diffusivity, mm2/s 13
4.4
Thermal Shock Resistance, points 24 to 27
33

Alloy Composition

Carbon (C), % 0.080 to 0.13
0 to 0.050
Chromium (Cr), % 1.0 to 1.4
12 to 15
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 93.8 to 95.2
74 to 81.9
Manganese (Mn), % 0.45 to 0.65
0.5 to 1.0
Molybdenum (Mo), % 0.080 to 0.15
1.5 to 2.0
Nickel (Ni), % 3.0 to 3.5
4.0 to 7.0
Nitrogen (N), % 0
0.060 to 0.12
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0.2 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.012
0 to 0.0050