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ASTM A302 Alloy Steel vs. C74400 Nickel Silver

ASTM A302 alloy steel belongs to the iron alloys classification, while C74400 nickel silver belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A302 alloy steel and the bottom bar is C74400 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20 to 23
43
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
39
Shear Strength, MPa 370 to 390
240
Tensile Strength: Ultimate (UTS), MPa 590 to 620
350
Tensile Strength: Yield (Proof), MPa 350 to 390
120

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 410
140
Melting Completion (Liquidus), °C 1460
930
Melting Onset (Solidus), °C 1420
910
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 39 to 51
120
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2 to 7.4
26
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.4
29

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4 to 3.0
25
Density, g/cm3 7.8 to 7.9
8.2
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
2.9
Embodied Energy, MJ/kg 20 to 21
48
Embodied Water, L/kg 48 to 50
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 410
63
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21 to 22
12
Strength to Weight: Bending, points 20 to 21
14
Thermal Diffusivity, mm2/s 10 to 14
37
Thermal Shock Resistance, points 17 to 18
12