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ASTM Grade HP Steel vs. 60Pd-40Ag Alloy

ASTM grade HP steel belongs to the iron alloys classification, while 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is 60Pd-40Ag alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
100
Elongation at Break, % 5.1
1.1 to 28
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 78
37
Tensile Strength: Ultimate (UTS), MPa 490
340 to 720

Thermal Properties

Latent Heat of Fusion, J/g 320
140
Melting Completion (Liquidus), °C 1370
1360
Melting Onset (Solidus), °C 1330
1310
Specific Heat Capacity, J/kg-K 480
240
Thermal Conductivity, W/m-K 12
29
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Density, g/cm3 7.9
11

Common Calculations

Stiffness to Weight: Axial, points 14
4.9
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 17
8.4 to 18
Strength to Weight: Bending, points 17
9.6 to 16
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 11
16 to 34

Alloy Composition

Carbon (C), % 0.35 to 0.75
0
Chromium (Cr), % 24 to 28
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 29.2 to 42.7
0
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0
Palladium (Pd), % 0
59.5 to 60.9
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.5
0
Silver (Ag), % 0
39.1 to 40.5
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.3