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AISI 201LN Stainless Steel vs. C72700 Copper-nickel

AISI 201LN stainless steel belongs to the iron alloys classification, while C72700 copper-nickel belongs to the copper alloys. 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 AISI 201LN stainless steel and the bottom bar is C72700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 25 to 51
4.0 to 36
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Shear Strength, MPa 530 to 680
310 to 620
Tensile Strength: Ultimate (UTS), MPa 740 to 1060
460 to 1070
Tensile Strength: Yield (Proof), MPa 350 to 770
580 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 880
200
Melting Completion (Liquidus), °C 1410
1100
Melting Onset (Solidus), °C 1370
930
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 15
54
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
11
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 7.7
8.8
Embodied Carbon, kg CO2/kg material 2.6
4.0
Embodied Energy, MJ/kg 38
62
Embodied Water, L/kg 140
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 310
20 to 380
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 1520
1420 to 4770
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 27 to 38
14 to 34
Strength to Weight: Bending, points 24 to 30
15 to 26
Thermal Diffusivity, mm2/s 4.0
16
Thermal Shock Resistance, points 16 to 23
16 to 38

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0 to 1.0
82.1 to 86
Iron (Fe), % 67.9 to 73.5
0 to 0.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 6.4 to 7.5
0.050 to 0.3
Nickel (Ni), % 4.0 to 5.0
8.5 to 9.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
5.5 to 6.5
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.3