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ACI-ASTM CB7Cu-1 Steel vs. S15500 Stainless Steel

Both ACI-ASTM CB7Cu-1 steel and S15500 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 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 S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
6.8 to 16
Fatigue Strength, MPa 420 to 590
350 to 650
Impact Strength: V-Notched Charpy, J 34
7.8 to 53
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
890 to 1490
Tensile Strength: Yield (Proof), MPa 760 to 1180
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.7
Embodied Energy, MJ/kg 38
39
Embodied Water, L/kg 130
130

Common Calculations

PREN (Pitting Resistance) 17
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
32 to 53
Strength to Weight: Bending, points 28 to 35
26 to 37
Thermal Diffusivity, mm2/s 4.6
4.6
Thermal Shock Resistance, points 32 to 45
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.070
Chromium (Cr), % 15.5 to 17.7
14 to 15.5
Copper (Cu), % 2.5 to 3.2
2.5 to 4.5
Iron (Fe), % 72.3 to 78.4
71.9 to 79.9
Manganese (Mn), % 0 to 0.7
0 to 1.0
Nickel (Ni), % 3.6 to 4.6
3.5 to 5.5
Niobium (Nb), % 0 to 0.35
0.15 to 0.45
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030