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SAE-AISI 1140 Steel vs. R04295 Alloy

SAE-AISI 1140 steel belongs to the iron alloys classification, while R04295 alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is R04295 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 14 to 18
22
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 72
37
Tensile Strength: Ultimate (UTS), MPa 600 to 700
410
Tensile Strength: Yield (Proof), MPa 340 to 570
300

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Specific Heat Capacity, J/kg-K 470
260
Thermal Expansion, µm/m-K 13
7.2

Otherwise Unclassified Properties

Density, g/cm3 7.8
9.0
Embodied Water, L/kg 46
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 93
84
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 870
430
Stiffness to Weight: Axial, points 13
6.3
Stiffness to Weight: Bending, points 24
17
Strength to Weight: Axial, points 21 to 25
13
Strength to Weight: Bending, points 20 to 22
14
Thermal Shock Resistance, points 18 to 21
40

Alloy Composition

Carbon (C), % 0.37 to 0.44
0 to 0.015
Hafnium (Hf), % 0
9.0 to 11
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 98.4 to 98.9
0
Manganese (Mn), % 0.7 to 1.0
0
Niobium (Nb), % 0
85.9 to 90.3
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0.080 to 0.13
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.7 to 1.3
Tungsten (W), % 0
0 to 0.5
Zirconium (Zr), % 0
0 to 0.7