MakeItFrom.com
Menu (ESC)

AISI 431 Stainless Steel vs. C71520 Copper-nickel

AISI 431 stainless steel belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 15 to 17
10 to 45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
51
Shear Strength, MPa 550 to 840
250 to 340
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
370 to 570
Tensile Strength: Yield (Proof), MPa 710 to 1040
140 to 430

Thermal Properties

Latent Heat of Fusion, J/g 280
230
Maximum Temperature: Mechanical, °C 850
260
Melting Completion (Liquidus), °C 1510
1170
Melting Onset (Solidus), °C 1450
1120
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 26
32
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
40
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 2.2
5.0
Embodied Energy, MJ/kg 31
73
Embodied Water, L/kg 120
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
54 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
67 to 680
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 32 to 50
12 to 18
Strength to Weight: Bending, points 27 to 36
13 to 17
Thermal Diffusivity, mm2/s 7.0
8.9
Thermal Shock Resistance, points 28 to 43
12 to 19

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
65 to 71.6
Iron (Fe), % 78.2 to 83.8
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 1.3 to 2.5
28 to 33
Phosphorus (P), % 0 to 0.040
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5