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SAE-AISI 1548 Steel vs. S35140 Stainless Steel

Both SAE-AISI 1548 steel and S35140 stainless steel are iron alloys. 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 SAE-AISI 1548 steel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 16
34
Fatigue Strength, MPa 270 to 430
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 440 to 500
460
Tensile Strength: Ultimate (UTS), MPa 730 to 830
690
Tensile Strength: Yield (Proof), MPa 420 to 690
310

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
14
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.5
Embodied Energy, MJ/kg 19
78
Embodied Water, L/kg 47
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 99
190
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 1280
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 30
24
Strength to Weight: Bending, points 23 to 25
22
Thermal Diffusivity, mm2/s 14
3.7
Thermal Shock Resistance, points 23 to 27
16

Alloy Composition

Carbon (C), % 0.44 to 0.52
0 to 0.1
Chromium (Cr), % 0
20 to 22
Iron (Fe), % 98 to 98.5
44.1 to 52.7
Manganese (Mn), % 1.1 to 1.4
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030