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SAE-AISI 1524 Steel vs. S31277 Stainless Steel

Both SAE-AISI 1524 steel and S31277 stainless steel are iron alloys. They have 42% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1524 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 14 to 22
45
Fatigue Strength, MPa 230 to 340
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 360 to 390
600
Tensile Strength: Ultimate (UTS), MPa 570 to 650
860
Tensile Strength: Yield (Proof), MPa 320 to 540
410

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.7
Embodied Energy, MJ/kg 19
90
Embodied Water, L/kg 48
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
320
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 23
29
Strength to Weight: Bending, points 19 to 21
25
Thermal Shock Resistance, points 18 to 21
19

Alloy Composition

Carbon (C), % 0.19 to 0.25
0 to 0.020
Chromium (Cr), % 0
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 98 to 98.5
35.5 to 46.2
Manganese (Mn), % 1.4 to 1.7
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.010