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ASTM B685 Alloy vs. S33228 Stainless Steel

ASTM B685 alloy belongs to the otherwise unclassified metals classification, while S33228 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is ASTM B685 alloy and the bottom bar is S33228 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
79
Tensile Strength: Ultimate (UTS), MPa 660 to 1060
570

Thermal Properties

Latent Heat of Fusion, J/g 180
310
Melting Completion (Liquidus), °C 1230
1410
Melting Onset (Solidus), °C 1200
1360
Specific Heat Capacity, J/kg-K 300
470
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Density, g/cm3 11
8.0

Common Calculations

Stiffness to Weight: Axial, points 6.1
14
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 17 to 27
20
Strength to Weight: Bending, points 16 to 21
19
Thermal Shock Resistance, points 28 to 46
13

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.025
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 39.5 to 40.5
0
Iron (Fe), % 0 to 0.050
36.5 to 42.3
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Palladium (Pd), % 59 to 60.5
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.2
0