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S34565 Stainless Steel vs. SAE-AISI 4142 Steel

Both S34565 stainless steel and SAE-AISI 4142 steel are iron alloys. Both are furnished in the annealed condition. They have 50% 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 S34565 stainless steel and the bottom bar is SAE-AISI 4142 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 39
20
Fatigue Strength, MPa 400
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 610
370
Tensile Strength: Ultimate (UTS), MPa 900
590
Tensile Strength: Yield (Proof), MPa 470
370

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
44
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.3
1.5
Embodied Energy, MJ/kg 73
20
Embodied Water, L/kg 210
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
100
Resilience: Unit (Modulus of Resilience), kJ/m3 540
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 22
19

Alloy Composition

Carbon (C), % 0 to 0.030
0.4 to 0.45
Chromium (Cr), % 23 to 25
0.8 to 1.1
Iron (Fe), % 43.2 to 51.6
96.8 to 97.8
Manganese (Mn), % 5.0 to 7.0
0.75 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0.15 to 0.25
Nickel (Ni), % 16 to 18
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040