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R60705 Alloy vs. ASTM Grade LCA Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while ASTM grade LCA steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
27
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 37
72
Tensile Strength: Ultimate (UTS), MPa 540
500
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 17
49
Thermal Expansion, µm/m-K 6.3
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 950
150
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 9.5
14
Thermal Shock Resistance, points 63
16

Alloy Composition


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Carbon (C), % 0 to 0.050
0 to 0.25
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0
0 to 0.3
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
96.9 to 100
Manganese (Mn), % 0
0 to 0.7
Molybdenum (Mo), % 0
0 to 0.2
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.045
Zirconium (Zr), % 91 to 98
0
Residuals, % 0
0 to 1.0