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EN 1.1191 Steel vs. ASTM B780 Alloy

EN 1.1191 steel belongs to the iron alloys classification, while ASTM B780 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 1.1191 steel and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 16 to 17
1.1 to 9.1
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 72
30
Shear Strength, MPa 380 to 430
200 to 340
Tensile Strength: Ultimate (UTS), MPa 630 to 700
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Specific Heat Capacity, J/kg-K 470
270
Thermal Expansion, µm/m-K 12
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
70 to 76
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
62 to 68

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.5
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 22 to 25
9.1 to 16
Strength to Weight: Bending, points 21 to 22
11 to 15
Thermal Shock Resistance, points 20 to 22
16 to 29

Alloy Composition

Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0.42 to 0.5
0
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0
23.5 to 25.7
Iron (Fe), % 97.3 to 99.08
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0.5 to 0.8
0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0.35 to 0.65
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
74 to 76
Sulfur (S), % 0 to 0.035
0
Zinc (Zn), % 0
0 to 0.060