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EN 1.4640 Stainless Steel vs. C87700 Bronze

EN 1.4640 stainless steel belongs to the iron alloys classification, while C87700 bronze belongs to the copper alloys. There are 28 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 EN 1.4640 stainless steel and the bottom bar is C87700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 51
3.6
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 620 to 650
300
Tensile Strength: Yield (Proof), MPa 240 to 260
120

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 930
180
Melting Completion (Liquidus), °C 1420
980
Melting Onset (Solidus), °C 1380
900
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
45
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
48

Otherwise Unclassified Properties

Base Metal Price, % relative 14
29
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
8.6
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
64
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 22 to 23
9.8
Strength to Weight: Bending, points 21
12
Thermal Diffusivity, mm2/s 4.0
34
Thermal Shock Resistance, points 14 to 15
11

Alloy Composition

Antimony (Sb), % 0
0 to 0.1
Carbon (C), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
0
Copper (Cu), % 1.3 to 2.0
87.5 to 90.5
Iron (Fe), % 67.4 to 73.6
0 to 0.5
Lead (Pb), % 0
0 to 0.090
Manganese (Mn), % 1.5 to 4.0
0 to 0.8
Nickel (Ni), % 5.5 to 6.9
0 to 0.25
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0 to 0.15
Silicon (Si), % 0 to 0.5
2.5 to 3.5
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
0 to 2.0
Zinc (Zn), % 0
7.0 to 9.0
Residuals, % 0
0 to 0.8