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SAE-AISI 4340M Steel vs. C28000 Muntz Metal

SAE-AISI 4340M steel belongs to the iron alloys classification, while C28000 Muntz Metal belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4340M steel and the bottom bar is C28000 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 6.0
10 to 45
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72
40
Shear Strength, MPa 1360
230 to 330
Tensile Strength: Ultimate (UTS), MPa 2340
330 to 610
Tensile Strength: Yield (Proof), MPa 1240
150 to 370

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Maximum Temperature: Mechanical, °C 430
120
Melting Completion (Liquidus), °C 1440
900
Melting Onset (Solidus), °C 1400
900
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 38
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
28
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
31

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
23
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.9
2.7
Embodied Energy, MJ/kg 26
46
Embodied Water, L/kg 55
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
27 to 240
Resilience: Unit (Modulus of Resilience), kJ/m3 4120
110 to 670
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 84
11 to 21
Strength to Weight: Bending, points 51
13 to 20
Thermal Diffusivity, mm2/s 10
40
Thermal Shock Resistance, points 70
11 to 20

Alloy Composition

Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
59 to 63
Iron (Fe), % 93.3 to 94.8
0 to 0.070
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0.65 to 0.9
0
Molybdenum (Mo), % 0.35 to 0.45
0
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.012
0
Silicon (Si), % 1.5 to 1.8
0
Sulfur (S), % 0 to 0.012
0
Vanadium (V), % 0.050 to 0.1
0
Zinc (Zn), % 0
36.3 to 41
Residuals, % 0
0 to 0.3