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EN 1.4305 Stainless Steel vs. ACI-ASTM CB7Cu-2 Steel

Both EN 1.4305 stainless steel and ACI-ASTM CB7Cu-2 steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4305 stainless steel and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 40
5.7 to 11
Fatigue Strength, MPa 190 to 330
420 to 590
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 610 to 900
960 to 1350
Tensile Strength: Yield (Proof), MPa 220 to 570
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.6
Embodied Energy, MJ/kg 42
38
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 830
1510 to 3600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 32
34 to 48
Strength to Weight: Bending, points 20 to 27
28 to 35
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 14 to 20
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 17 to 19
14 to 15.5
Copper (Cu), % 0 to 1.0
2.5 to 3.2
Iron (Fe), % 66.4 to 74.9
73.6 to 79
Manganese (Mn), % 0 to 2.0
0 to 0.7
Nickel (Ni), % 8.0 to 10
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.1
0 to 0.050
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.030

Comparable Variants