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AISI 317LMN Stainless Steel vs. SAE-AISI 6118 Steel

Both AISI 317LMN stainless steel and SAE-AISI 6118 steel are iron alloys. Both are furnished in the annealed condition. They have 61% 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 6118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
23
Fatigue Strength, MPa 250
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
73
Shear Strength, MPa 430
300
Tensile Strength: Ultimate (UTS), MPa 620
470
Tensile Strength: Yield (Proof), MPa 270
290

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
45
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.7
Embodied Energy, MJ/kg 65
23
Embodied Water, L/kg 170
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
93
Resilience: Unit (Modulus of Resilience), kJ/m3 180
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 3.8
12
Thermal Shock Resistance, points 14
14

Alloy Composition

Carbon (C), % 0 to 0.030
0.16 to 0.21
Chromium (Cr), % 17 to 20
0.5 to 0.7
Iron (Fe), % 54.4 to 65.4
97.8 to 98.6
Manganese (Mn), % 0 to 2.0
0.5 to 0.7
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 13.5 to 17.5
0
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
Vanadium (V), % 0
0.1 to 0.15