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AISI 303 Stainless Steel vs. Grade 704C Zirconium

AISI 303 stainless steel belongs to the iron alloys classification, while grade 704C zirconium belongs to the otherwise unclassified metals. There are 21 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 AISI 303 stainless steel and the bottom bar is grade 704C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
210
Elastic (Young's, Tensile) Modulus, GPa 200
97
Elongation at Break, % 40 to 51
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
36
Tensile Strength: Ultimate (UTS), MPa 600 to 690
470
Tensile Strength: Yield (Proof), MPa 230 to 420
310

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 17
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 140
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
48
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 440
490
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21 to 25
20
Strength to Weight: Bending, points 20 to 22
20
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 13 to 15
58

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 17 to 19
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 67.3 to 74.9
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.2
0 to 0.010
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
92.9 to 99