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ASTM Grade HP Steel vs. 85-silver 15-nickel

ASTM grade HP steel belongs to the iron alloys classification, while 85-silver 15-nickel belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HP steel and the bottom bar is 85-silver 15-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
88
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 78
32
Tensile Strength: Ultimate (UTS), MPa 490
260 to 470

Thermal Properties

Latent Heat of Fusion, J/g 320
140
Melting Completion (Liquidus), °C 1370
870
Melting Onset (Solidus), °C 1330
960
Specific Heat Capacity, J/kg-K 480
270
Thermal Expansion, µm/m-K 16
18

Otherwise Unclassified Properties

Density, g/cm3 7.9
10

Common Calculations

Stiffness to Weight: Axial, points 14
4.8
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 17
7.1 to 13
Strength to Weight: Bending, points 17
8.9 to 13
Thermal Shock Resistance, points 11
12 to 21

Alloy Composition

Carbon (C), % 0.35 to 0.75
0
Chromium (Cr), % 24 to 28
0
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
13.8 to 16
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.5
0
Silver (Ag), % 0
84 to 86
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.2