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ACI-ASTM CB7Cu-1 Steel vs. AISI 430FSe Stainless Steel

Both ACI-ASTM CB7Cu-1 steel and AISI 430FSe stainless steel are iron alloys. They have a moderately high 93% 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is AISI 430FSe stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
23
Fatigue Strength, MPa 420 to 590
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
540
Tensile Strength: Yield (Proof), MPa 760 to 1180
310

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
8.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.1
Embodied Energy, MJ/kg 38
30
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 17
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
20
Strength to Weight: Bending, points 28 to 35
19
Thermal Diffusivity, mm2/s 4.6
6.8
Thermal Shock Resistance, points 32 to 45
19

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.12
Chromium (Cr), % 15.5 to 17.7
16 to 18
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 72.3 to 78.4
79.5 to 84
Manganese (Mn), % 0 to 0.7
0 to 1.3
Nickel (Ni), % 3.6 to 4.6
0
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.060