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S32750 Stainless Steel vs. SAE-AISI 1340 Steel

Both S32750 stainless steel and SAE-AISI 1340 steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S32750 stainless steel and the bottom bar is SAE-AISI 1340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 17
11 to 23
Fatigue Strength, MPa 360
220 to 390
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
72
Shear Strength, MPa 530
340 to 440
Tensile Strength: Ultimate (UTS), MPa 860
540 to 730
Tensile Strength: Yield (Proof), MPa 590
300 to 620

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 21
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 56
19
Embodied Water, L/kg 180
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 860
240 to 1040
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 31
19 to 26
Strength to Weight: Bending, points 26
19 to 23
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 25
17 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0.38 to 0.43
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 58.1 to 66.8
97.2 to 97.9
Manganese (Mn), % 0 to 1.2
1.6 to 1.9
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.8
0.15 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.040