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ASTM A372 Grade H Steel vs. ASTM B540 Palladium

ASTM A372 grade H 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 ASTM A372 grade H 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 to 22
1.1 to 14
Fatigue Strength, MPa 310 to 380
350
Poisson's Ratio 0.29
0.38
Shear Modulus, GPa 73
39
Shear Strength, MPa 410 to 570
500 to 700
Tensile Strength: Ultimate (UTS), MPa 650 to 910
830 to 1240
Tensile Strength: Yield (Proof), MPa 430 to 550
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Melting Completion (Liquidus), °C 1460
1220
Melting Onset (Solidus), °C 1420
1020
Specific Heat Capacity, J/kg-K 470
240
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
1790 to 4660
Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 24
12
Strength to Weight: Axial, points 23 to 32
18 to 27
Strength to Weight: Bending, points 21 to 27
15 to 20
Thermal Shock Resistance, points 19 to 27
41 to 61

Alloy Composition

Carbon (C), % 0.3 to 0.4
0
Chromium (Cr), % 0.4 to 0.65
0
Copper (Cu), % 0
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Iron (Fe), % 97.3 to 98.3
0
Manganese (Mn), % 0.75 to 1.1
0
Molybdenum (Mo), % 0.15 to 0.25
0
Palladium (Pd), % 0
34 to 36
Phosphorus (P), % 0 to 0.015
0
Platinum (Pt), % 0
9.5 to 10.5
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.010
0
Zinc (Zn), % 0
0.8 to 1.2
Residuals, % 0
0 to 0.3

Comparable Variants