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S32550 Stainless Steel vs. SAE-AISI 1548 Steel

Both S32550 stainless steel and SAE-AISI 1548 steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 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 S32550 stainless steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 21
11 to 16
Fatigue Strength, MPa 400
270 to 430
Poisson's Ratio 0.27
0.29
Reduction in Area, % 57
31 to 39
Shear Modulus, GPa 80
72
Shear Strength, MPa 540
440 to 500
Tensile Strength: Ultimate (UTS), MPa 860
730 to 830
Tensile Strength: Yield (Proof), MPa 620
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 940
470 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
26 to 30
Strength to Weight: Bending, points 26
23 to 25
Thermal Diffusivity, mm2/s 4.4
14
Thermal Shock Resistance, points 23
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.040
0.44 to 0.52
Chromium (Cr), % 24 to 27
0
Copper (Cu), % 1.5 to 2.5
0
Iron (Fe), % 57.2 to 67
98 to 98.5
Manganese (Mn), % 0 to 1.5
1.1 to 1.4
Molybdenum (Mo), % 2.9 to 3.9
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050