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Grade 704C Zirconium vs. ASTM A372 Grade J Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while ASTM A372 grade J steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is ASTM A372 grade J steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
200 to 310
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 11
17 to 22
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 470
650 to 1020
Tensile Strength: Yield (Proof), MPa 310
430 to 850

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 21
44
Thermal Expansion, µm/m-K 5.9
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 460
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 490
500 to 1930
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
23 to 36
Strength to Weight: Bending, points 20
21 to 29
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 58
19 to 30

Alloy Composition

Carbon (C), % 0 to 0.1
0.35 to 0.5
Chromium (Cr), % 0
0.8 to 1.2
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
96.7 to 97.8
Manganese (Mn), % 0
0.75 to 1.1
Molybdenum (Mo), % 0
0.15 to 0.25
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0