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AISI 316L Stainless Steel vs. ACI-ASTM CN3M Steel

Both AISI 316L stainless steel and ACI-ASTM CN3M steel are iron alloys. They have 80% 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 316L stainless steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 350
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0 to 50
34
Fatigue Strength, MPa 170 to 450
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 530 to 1160
500
Tensile Strength: Yield (Proof), MPa 190 to 870
190

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.9
5.9
Embodied Energy, MJ/kg 53
80
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 26
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 230
130
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 1880
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19 to 41
17
Strength to Weight: Bending, points 18 to 31
17
Thermal Diffusivity, mm2/s 4.1
3.4
Thermal Shock Resistance, points 12 to 25
11

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 16 to 18
20 to 22
Iron (Fe), % 62 to 72
42.4 to 52.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
4.5 to 5.5
Nickel (Ni), % 10 to 14
23 to 27
Nitrogen (N), % 0 to 0.1
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