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SAE-AISI 1345 Steel vs. S41041 Stainless Steel

Both SAE-AISI 1345 steel and S41041 stainless steel are iron alloys. They have 87% 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 1345 steel and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 23
17
Fatigue Strength, MPa 230 to 390
350
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 370 to 440
560
Tensile Strength: Ultimate (UTS), MPa 590 to 730
910
Tensile Strength: Yield (Proof), MPa 330 to 620
580

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
740
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
29
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 19
31
Embodied Water, L/kg 48
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
860
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 26
32
Strength to Weight: Bending, points 20 to 23
27
Thermal Diffusivity, mm2/s 14
7.8
Thermal Shock Resistance, points 19 to 23
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.43 to 0.48
0.13 to 0.18
Chromium (Cr), % 0
11.5 to 13
Iron (Fe), % 97.2 to 97.8
84.5 to 87.8
Manganese (Mn), % 1.6 to 1.9
0.4 to 0.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
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 0.030