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ASTM B780 Alloy vs. AISI 334 Stainless Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while AISI 334 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
200
Elongation at Break, % 1.1 to 9.1
34
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
77
Shear Strength, MPa 200 to 340
360
Tensile Strength: Ultimate (UTS), MPa 330 to 590
540

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Specific Heat Capacity, J/kg-K 270
480
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Density, g/cm3 10
7.9

Common Calculations

Stiffness to Weight: Axial, points 4.5
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 9.1 to 16
19
Strength to Weight: Bending, points 11 to 15
19
Thermal Shock Resistance, points 16 to 29
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 23.5 to 25.7
0
Iron (Fe), % 0 to 0.050
55.7 to 62.7
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0.35 to 0.65
19 to 21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Zinc (Zn), % 0 to 0.060
0