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AWS E312 vs. ASTM B780 Alloy

AWS E312 belongs to the iron alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
83
Elongation at Break, % 25
1.1 to 9.1
Poisson's Ratio 0.27
0.36
Shear Modulus, GPa 80
30
Tensile Strength: Ultimate (UTS), MPa 740
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 310
140
Specific Heat Capacity, J/kg-K 480
270
Thermal Expansion, µm/m-K 15
18

Otherwise Unclassified Properties

Density, g/cm3 7.7
10

Common Calculations

Stiffness to Weight: Axial, points 15
4.5
Stiffness to Weight: Bending, points 25
14
Strength to Weight: Axial, points 27
9.1 to 16
Strength to Weight: Bending, points 24
11 to 15
Thermal Shock Resistance, points 18
16 to 29

Alloy Composition

Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 28 to 32
0
Copper (Cu), % 0 to 0.75
23.5 to 25.7
Iron (Fe), % 52.3 to 63.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.5 to 2.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 8.0 to 10.5
0.35 to 0.65
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
74 to 76
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.060