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AISI 317LMN Stainless Steel vs. SAE-AISI 4815 Steel

Both AISI 317LMN stainless steel and SAE-AISI 4815 steel are iron alloys. Both are furnished in the annealed condition. 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 AISI 317LMN stainless steel and the bottom bar is SAE-AISI 4815 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
23
Fatigue Strength, MPa 250
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 430
350
Tensile Strength: Ultimate (UTS), MPa 620
550
Tensile Strength: Yield (Proof), MPa 270
370

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1020
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
7.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
4.3
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.8
1.8
Embodied Energy, MJ/kg 65
24
Embodied Water, L/kg 170
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 3.8
14
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.030
0.13 to 0.18
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 54.4 to 65.4
94.7 to 95.9
Manganese (Mn), % 0 to 2.0
0.4 to 0.6
Molybdenum (Mo), % 4.0 to 5.0
0.2 to 0.3
Nickel (Ni), % 13.5 to 17.5
3.3 to 3.8
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040