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ACI-ASTM CB7Cu-1 Steel vs. N08801 Stainless Steel

Both ACI-ASTM CB7Cu-1 steel and N08801 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 29 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
34
Fatigue Strength, MPa 420 to 590
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
860
Tensile Strength: Yield (Proof), MPa 760 to 1180
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1430
1390
Melting Onset (Solidus), °C 1500
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
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 13
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
5.5
Embodied Energy, MJ/kg 38
79
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 17
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
220
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
92
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
30
Strength to Weight: Bending, points 28 to 35
25
Thermal Diffusivity, mm2/s 4.6
3.3
Thermal Shock Resistance, points 32 to 45
20

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 15.5 to 17.7
19 to 22
Copper (Cu), % 2.5 to 3.2
0 to 0.5
Iron (Fe), % 72.3 to 78.4
39.5 to 50.3
Manganese (Mn), % 0 to 0.7
0 to 1.5
Nickel (Ni), % 3.6 to 4.6
30 to 34
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5