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SAE-AISI 9254 Steel vs. S42035 Stainless Steel

Both SAE-AISI 9254 steel and S42035 stainless steel are iron alloys. Both are furnished in the annealed condition. 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 (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is S42035 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
18
Fatigue Strength, MPa 280
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 410
390
Tensile Strength: Ultimate (UTS), MPa 660
630
Tensile Strength: Yield (Proof), MPa 410
430

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 410
810
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 46
27
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.4
Embodied Energy, MJ/kg 20
34
Embodied Water, L/kg 49
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 450
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
22
Strength to Weight: Bending, points 22
21
Thermal Diffusivity, mm2/s 12
7.2
Thermal Shock Resistance, points 20
22

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.080
Chromium (Cr), % 0.6 to 0.8
13.5 to 15.5
Iron (Fe), % 96.1 to 97.1
78.1 to 85
Manganese (Mn), % 0.6 to 0.8
0 to 1.0
Molybdenum (Mo), % 0
0.2 to 1.2
Nickel (Ni), % 0
1.0 to 2.5
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0.3 to 0.5