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R60704 Alloy vs. EN 1.7725 Steel

R60704 alloy belongs to the otherwise unclassified metals classification, while EN 1.7725 steel belongs to the iron alloys. 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 R60704 alloy and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 16
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 470
830 to 1000
Tensile Strength: Yield (Proof), MPa 270
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
39
Thermal Expansion, µm/m-K 6.0
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 460
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 370
980 to 1940
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
29 to 35
Strength to Weight: Bending, points 20
25 to 28
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 58
24 to 29

Alloy Composition

Carbon (C), % 0 to 0.050
0.27 to 0.34
Chromium (Cr), % 0.2 to 0.4
1.3 to 1.7
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0.2 to 0.4
95.7 to 97.5
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.0 to 2.0
0
Vanadium (V), % 0
0.050 to 0.15
Zirconium (Zr), % 93 to 98.8
0