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ASTM A356 Grade 5 vs. Chromium 33

ASTM A356 grade 5 belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. 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 ASTM A356 grade 5 and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
45
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 550
850
Tensile Strength: Yield (Proof), MPa 310
430

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
36
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.0
Embodied Energy, MJ/kg 20
84
Embodied Water, L/kg 49
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
320
Resilience: Unit (Modulus of Resilience), kJ/m3 250
450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
30
Strength to Weight: Bending, points 19
25
Thermal Shock Resistance, points 16
21

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.015
Chromium (Cr), % 0.4 to 0.7
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Iron (Fe), % 97.1 to 99.2
25.7 to 37.9
Manganese (Mn), % 0 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.6
0.5 to 2.0
Nickel (Ni), % 0
30 to 33
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010