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SAE-AISI 5130 Steel vs. S32550 Stainless Steel

Both SAE-AISI 5130 steel and S32550 stainless steel are iron alloys. They have 64% 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 5130 steel and the bottom bar is S32550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 190
260
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 22
21
Fatigue Strength, MPa 230 to 330
400
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Shear Strength, MPa 310 to 390
540
Tensile Strength: Ultimate (UTS), MPa 500 to 640
860
Tensile Strength: Yield (Proof), MPa 330 to 530
620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 50
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 98
160
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 750
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 23
31
Strength to Weight: Bending, points 18 to 21
26
Thermal Diffusivity, mm2/s 12
4.4
Thermal Shock Resistance, points 16 to 20
23

Alloy Composition

Carbon (C), % 0.28 to 0.33
0 to 0.040
Chromium (Cr), % 0.8 to 1.1
24 to 27
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 97.2 to 98.1
57.2 to 67
Manganese (Mn), % 0.7 to 0.9
0 to 1.5
Molybdenum (Mo), % 0
2.9 to 3.9
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030