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SAE-AISI 5130 Steel vs. S31277 Stainless Steel

Both SAE-AISI 5130 steel and S31277 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5130 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, % 12 to 22
45
Fatigue Strength, MPa 230 to 330
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Shear Strength, MPa 310 to 390
600
Tensile Strength: Ultimate (UTS), MPa 500 to 640
860
Tensile Strength: Yield (Proof), MPa 330 to 530
410

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
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 2.2
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 50
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 98
320
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 750
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 23
29
Strength to Weight: Bending, points 18 to 21
25
Thermal Shock Resistance, points 16 to 20
19

Alloy Composition

Carbon (C), % 0.28 to 0.33
0 to 0.020
Chromium (Cr), % 0.8 to 1.1
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 97.2 to 98.1
35.5 to 46.2
Manganese (Mn), % 0.7 to 0.9
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 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010