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S40930 Stainless Steel vs. SAE-AISI 1527 Steel

Both S40930 stainless steel and SAE-AISI 1527 steel are iron alloys. They have 88% 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 S40930 stainless steel and the bottom bar is SAE-AISI 1527 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
13 to 21
Fatigue Strength, MPa 130
220 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 270
370 to 390
Tensile Strength: Ultimate (UTS), MPa 430
590 to 640
Tensile Strength: Yield (Proof), MPa 190
320 to 550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 710
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
52
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 32
19
Embodied Water, L/kg 94
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
82 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 94
260 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
21 to 23
Strength to Weight: Bending, points 16
20 to 21
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 16
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0.22 to 0.29
Chromium (Cr), % 10.5 to 11.7
0
Iron (Fe), % 84.7 to 89.4
98.1 to 98.6
Manganese (Mn), % 0 to 1.0
1.2 to 1.5
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0 to 0.050
Titanium (Ti), % 0.050 to 0.2
0