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AISI 317LMN Stainless Steel vs. ACI-ASTM CF3 Steel

Both AISI 317LMN stainless steel and ACI-ASTM CF3 steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 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 AISI 317LMN stainless steel and the bottom bar is ACI-ASTM CF3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
60
Fatigue Strength, MPa 250
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 620
510
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1020
960
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
16
Thermal Expansion, µm/m-K 16
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 24
16
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.8
3.2
Embodied Energy, MJ/kg 65
45
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 36
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
250
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.8
4.3
Thermal Shock Resistance, points 14
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17 to 20
17 to 21
Iron (Fe), % 54.4 to 65.4
62.9 to 75
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.5
Nickel (Ni), % 13.5 to 17.5
8.0 to 12
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040