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ASTM B685 Alloy vs. EN 1.4020 Stainless Steel

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 15 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 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.37
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
770 to 1130

Thermal Properties

Latent Heat of Fusion, J/g 180
280
Melting Completion (Liquidus), °C 1230
1390
Melting Onset (Solidus), °C 1200
1350
Specific Heat Capacity, J/kg-K 300
480
Thermal Expansion, µm/m-K 14
17

Otherwise Unclassified Properties

Density, g/cm3 11
7.6

Common Calculations

Stiffness to Weight: Axial, points 6.1
14
Stiffness to Weight: Bending, points 15
25
Strength to Weight: Axial, points 17 to 27
28 to 41
Strength to Weight: Bending, points 16 to 21
25 to 32
Thermal Shock Resistance, points 28 to 46
16 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16.5 to 19
Copper (Cu), % 39.5 to 40.5
0
Iron (Fe), % 0 to 0.050
62.8 to 71.8
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
11 to 14
Nickel (Ni), % 0
0.5 to 2.5
Nitrogen (N), % 0
0.2 to 0.45
Palladium (Pd), % 59 to 60.5
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.2
0