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SAE-AISI 9254 Steel vs. ASTM B540 Palladium

SAE-AISI 9254 steel belongs to the iron alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 23 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 SAE-AISI 9254 steel and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 20
1.1 to 14
Fatigue Strength, MPa 280
350
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 72
39
Shear Strength, MPa 410
500 to 700
Tensile Strength: Ultimate (UTS), MPa 660
830 to 1240
Tensile Strength: Yield (Proof), MPa 410
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 270
140
Melting Completion (Liquidus), °C 1440
1220
Melting Onset (Solidus), °C 1400
1020
Specific Heat Capacity, J/kg-K 480
240
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 7.7
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1790 to 4660
Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 25
12
Strength to Weight: Axial, points 24
18 to 27
Strength to Weight: Bending, points 22
15 to 20
Thermal Shock Resistance, points 20
41 to 61

Alloy Composition

Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.6 to 0.8
0
Copper (Cu), % 0
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 96.1 to 97.1
0
Manganese (Mn), % 0.6 to 0.8
0
Palladium (Pd), % 0
34 to 36
Phosphorus (P), % 0 to 0.035
0
Platinum (Pt), % 0
9.5 to 10.5
Silicon (Si), % 1.2 to 1.6
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0.8 to 1.2
Residuals, % 0
0 to 0.3