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S42035 Stainless Steel vs. SAE-AISI 9255 Steel

Both S42035 stainless steel and SAE-AISI 9255 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 S42035 stainless steel and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
21
Fatigue Strength, MPa 260
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 390
430
Tensile Strength: Ultimate (UTS), MPa 630
680
Tensile Strength: Yield (Proof), MPa 430
390

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Mechanical, °C 810
400
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 34
20
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 460
400
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 7.2
13
Thermal Shock Resistance, points 22
21

Alloy Composition

Carbon (C), % 0 to 0.080
0.51 to 0.59
Chromium (Cr), % 13.5 to 15.5
0
Iron (Fe), % 78.1 to 85
96.2 to 97
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.2 to 1.2
0
Nickel (Ni), % 1.0 to 2.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
1.8 to 2.2
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0.3 to 0.5
0