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ASTM B685 Alloy vs. SAE-AISI L6 Steel

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI L6 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM B685 alloy and the bottom bar is SAE-AISI L6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.37
0.29
Shear Modulus, GPa 43
72
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
670 to 2090

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Melting Completion (Liquidus), °C 1230
1450
Melting Onset (Solidus), °C 1200
1410
Specific Heat Capacity, J/kg-K 300
470
Thermal Expansion, µm/m-K 14
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
8.7

Otherwise Unclassified Properties

Density, g/cm3 11
7.8

Common Calculations

Stiffness to Weight: Axial, points 6.1
13
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 17 to 27
24 to 74
Strength to Weight: Bending, points 16 to 21
22 to 46
Thermal Shock Resistance, points 28 to 46
22 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.65 to 0.75
Chromium (Cr), % 0
0.6 to 1.2
Copper (Cu), % 39.5 to 40.5
0 to 0.25
Iron (Fe), % 0 to 0.050
93.6 to 97.3
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.25 to 0.8
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
1.3 to 2.0
Palladium (Pd), % 59 to 60.5
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.2
0

Comparable Variants