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ASTM B685 Alloy vs. EN 1.8201 Steel

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while EN 1.8201 steel belongs to the iron alloys. There are 17 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 B685 alloy and the bottom bar is EN 1.8201 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
74
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
630

Thermal Properties

Latent Heat of Fusion, J/g 180
250
Melting Completion (Liquidus), °C 1230
1500
Melting Onset (Solidus), °C 1200
1450
Specific Heat Capacity, J/kg-K 300
470
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
8.8

Otherwise Unclassified Properties

Density, g/cm3 11
8.0

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
22
Strength to Weight: Bending, points 16 to 21
20
Thermal Shock Resistance, points 28 to 46
18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.030
Boron (B), % 0
0.0010 to 0.0060
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
1.9 to 2.6
Copper (Cu), % 39.5 to 40.5
0
Iron (Fe), % 0 to 0.050
93.6 to 96.2
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.1 to 0.6
Molybdenum (Mo), % 0
0.050 to 0.3
Niobium (Nb), % 0
0.020 to 0.080
Nitrogen (N), % 0
0 to 0.015
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 0.010
Titanium (Ti), % 0
0.0050 to 0.060
Tungsten (W), % 0
1.5 to 1.8
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.2
0