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ACI-ASTM CB7Cu-2 Steel vs. N08020 Stainless Steel

Both ACI-ASTM CB7Cu-2 steel and N08020 stainless steel are iron alloys. They have 61% of their average alloy composition in common. There are 29 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 ACI-ASTM CB7Cu-2 steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
15 to 34
Fatigue Strength, MPa 420 to 590
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
610 to 620
Tensile Strength: Yield (Proof), MPa 760 to 1180
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.6
6.6
Embodied Energy, MJ/kg 38
92
Embodied Water, L/kg 130
220

Common Calculations

PREN (Pitting Resistance) 15
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
21
Strength to Weight: Bending, points 28 to 35
20
Thermal Diffusivity, mm2/s 4.6
3.2
Thermal Shock Resistance, points 32 to 45
15

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.070
Chromium (Cr), % 14 to 15.5
19 to 21
Copper (Cu), % 2.5 to 3.2
3.0 to 4.0
Iron (Fe), % 73.6 to 79
29.9 to 44
Manganese (Mn), % 0 to 0.7
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 4.5 to 5.5
32 to 38
Niobium (Nb), % 0 to 0.35
0 to 1.0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.035