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AISI 317LM Stainless Steel vs. ACI-ASTM CN3M Steel

Both AISI 317LM stainless steel and ACI-ASTM CN3M steel are iron alloys. They have 88% 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 317LM stainless steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
34
Fatigue Strength, MPa 210
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 590
500
Tensile Strength: Yield (Proof), MPa 230
190

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 24
31
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 4.8
5.9
Embodied Energy, MJ/kg 65
80
Embodied Water, L/kg 170
200

Common Calculations

PREN (Pitting Resistance) 35
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
130
Resilience: Unit (Modulus of Resilience), kJ/m3 130
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
17
Thermal Diffusivity, mm2/s 3.8
3.4
Thermal Shock Resistance, points 13
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
20 to 22
Iron (Fe), % 54.4 to 64.5
42.4 to 52.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
4.5 to 5.5
Nickel (Ni), % 13.5 to 17.5
23 to 27
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030