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SAE-AISI 1040 Steel vs. R60704 Alloy

SAE-AISI 1040 steel belongs to the iron alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1040 steel and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
97
Elongation at Break, % 13 to 20
16
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
36
Tensile Strength: Ultimate (UTS), MPa 570 to 640
470
Tensile Strength: Yield (Proof), MPa 320 to 530
270

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 51
22
Thermal Expansion, µm/m-K 12
6.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 46
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
64
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
370
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20 to 23
20
Strength to Weight: Bending, points 19 to 21
20
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 18 to 20
58

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.050
Chromium (Cr), % 0
0.2 to 0.4
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 98.6 to 99.03
0.2 to 0.4
Manganese (Mn), % 0.6 to 0.9
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
93 to 98.8