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ASTM Grade LC4 Steel vs. R60705 Alloy

ASTM grade LC4 steel belongs to the iron alloys classification, while R60705 alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC4 steel and the bottom bar is R60705 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 27
18
Fatigue Strength, MPa 230
290
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
37
Tensile Strength: Ultimate (UTS), MPa 570
540
Tensile Strength: Yield (Proof), MPa 310
430

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 49
17
Thermal Expansion, µm/m-K 13
6.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
6.7
Embodied Water, L/kg 54
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
90
Resilience: Unit (Modulus of Resilience), kJ/m3 260
950
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 13
9.5
Thermal Shock Resistance, points 17
63

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 0
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 93.4 to 95.5
0 to 0.2
Manganese (Mn), % 0.5 to 0.8
0
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.045
0
Zirconium (Zr), % 0
91 to 98