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ACI-ASTM CB7Cu-1 Steel vs. EN 1.4568 Stainless Steel

Both ACI-ASTM CB7Cu-1 steel and EN 1.4568 stainless steel are iron alloys. They have a very high 95% 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 EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
2.3 to 21
Fatigue Strength, MPa 420 to 590
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
830 to 1620
Tensile Strength: Yield (Proof), MPa 760 to 1180
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
13

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
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 38
40
Embodied Water, L/kg 130
140

Common Calculations

PREN (Pitting Resistance) 17
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
30 to 58
Strength to Weight: Bending, points 28 to 35
25 to 40
Thermal Diffusivity, mm2/s 4.6
4.3
Thermal Shock Resistance, points 32 to 45
23 to 46

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.5
Carbon (C), % 0 to 0.070
0 to 0.090
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
70.9 to 76.8
Manganese (Mn), % 0 to 0.7
0 to 1.0
Nickel (Ni), % 3.6 to 4.6
6.5 to 7.8
Niobium (Nb), % 0 to 0.35
0
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 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015