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ACI-ASTM CB7Cu-2 Steel vs. EN 1.4034 Stainless Steel

Both ACI-ASTM CB7Cu-2 steel and EN 1.4034 stainless steel are iron alloys. They have a moderately high 91% 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 EN 1.4034 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 5.7 to 11
11 to 14
Fatigue Strength, MPa 420 to 590
230 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
690 to 900
Tensile Strength: Yield (Proof), MPa 760 to 1180
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.0
Embodied Energy, MJ/kg 38
27
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 15
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
81 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
400 to 1370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 34 to 48
25 to 32
Strength to Weight: Bending, points 28 to 35
22 to 27
Thermal Diffusivity, mm2/s 4.6
8.1
Thermal Shock Resistance, points 32 to 45
24 to 32

Alloy Composition

Carbon (C), % 0 to 0.070
0.43 to 0.5
Chromium (Cr), % 14 to 15.5
12.5 to 14.5
Copper (Cu), % 2.5 to 3.2
0
Iron (Fe), % 73.6 to 79
83 to 87.1
Manganese (Mn), % 0 to 0.7
0 to 1.0
Nickel (Ni), % 4.5 to 5.5
0
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 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015