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S15500 Stainless Steel vs. SAE-AISI 1548 Steel

Both S15500 stainless steel and SAE-AISI 1548 steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 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 S15500 stainless steel and the bottom bar is SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
11 to 16
Fatigue Strength, MPa 350 to 650
270 to 430
Poisson's Ratio 0.28
0.29
Reduction in Area, % 17 to 40
31 to 39
Shear Modulus, GPa 75
72
Shear Strength, MPa 540 to 870
440 to 500
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
730 to 830
Tensile Strength: Yield (Proof), MPa 590 to 1310
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 11
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 13
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
470 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
26 to 30
Strength to Weight: Bending, points 26 to 37
23 to 25
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 30 to 50
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.44 to 0.52
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
98 to 98.5
Manganese (Mn), % 0 to 1.0
1.1 to 1.4
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
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