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S17700 Stainless Steel vs. CR017A Copper

S17700 stainless steel belongs to the iron alloys classification, while CR017A copper belongs to the copper alloys. There are 28 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 S17700 stainless steel and the bottom bar is CR017A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 1.0 to 23
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
230
Tensile Strength: Yield (Proof), MPa 430 to 1210
140

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Maximum Temperature: Mechanical, °C 890
200
Melting Completion (Liquidus), °C 1440
1090
Melting Onset (Solidus), °C 1400
1040
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 15
380
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
100

Otherwise Unclassified Properties

Base Metal Price, % relative 13
32
Density, g/cm3 7.7
9.0
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 40
42
Embodied Water, L/kg 150
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
31
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
83
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 42 to 59
7.1
Strength to Weight: Bending, points 32 to 40
9.3
Thermal Diffusivity, mm2/s 4.1
110
Thermal Shock Resistance, points 39 to 54
8.1

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0 to 0.090
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
99.944 to 99.97
Iron (Fe), % 70.5 to 76.8
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0.030 to 0.050
Sulfur (S), % 0 to 0.030
0