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AISI 316L Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel

Both AISI 316L stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have 88% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 350
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0 to 50
5.7 to 11
Fatigue Strength, MPa 170 to 450
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 530 to 1160
960 to 1350
Tensile Strength: Yield (Proof), MPa 190 to 870
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
2.6
Embodied Energy, MJ/kg 53
38
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 26
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 230
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 93 to 1880
1510 to 3600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 41
34 to 48
Strength to Weight: Bending, points 18 to 31
28 to 35
Thermal Diffusivity, mm2/s 4.1
4.6
Thermal Shock Resistance, points 12 to 25
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 16 to 18
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Iron (Fe), % 62 to 72
73.6 to 79
Manganese (Mn), % 0 to 2.0
0 to 0.7
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.1
0 to 0.050
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030