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EN 1.3955 Stainless Steel vs. ASTM B685 Alloy

EN 1.3955 stainless steel belongs to the iron alloys classification, while ASTM B685 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is EN 1.3955 stainless steel and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.28
0.37
Shear Modulus, GPa 77
43
Tensile Strength: Ultimate (UTS), MPa 520
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 290
180
Melting Completion (Liquidus), °C 1430
1230
Melting Onset (Solidus), °C 1380
1200
Specific Heat Capacity, J/kg-K 480
300
Thermal Expansion, µm/m-K 12
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
4.1

Otherwise Unclassified Properties

Density, g/cm3 7.8
11

Common Calculations

Stiffness to Weight: Axial, points 14
6.1
Stiffness to Weight: Bending, points 25
15
Strength to Weight: Axial, points 18
17 to 27
Strength to Weight: Bending, points 18
16 to 21
Thermal Shock Resistance, points 15
28 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
39.5 to 40.5
Iron (Fe), % 65.5 to 73.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 10 to 12
0
Palladium (Pd), % 0
59 to 60.5
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.060
Residuals, % 0
0 to 0.2