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EN 1.3961 Alloy vs. EN 1.6771 Steel

Both EN 1.3961 alloy and EN 1.6771 steel are iron alloys. They have 67% of their average alloy composition in common. There are 23 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 EN 1.3961 alloy and the bottom bar is EN 1.6771 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 31
8.0 to 8.7
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 450
930 to 1180
Tensile Strength: Yield (Proof), MPa 310
740 to 1140

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.3
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
5.0
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 4.8
1.9
Embodied Energy, MJ/kg 66
25
Embodied Water, L/kg 110
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
75 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1460 to 3450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
33 to 41
Strength to Weight: Bending, points 16
27 to 31
Thermal Shock Resistance, points 130
27 to 35

Alloy Composition

Carbon (C), % 0 to 0.050
0.27 to 0.33
Chromium (Cr), % 0 to 0.25
0.8 to 1.2
Iron (Fe), % 60.7 to 65
92.2 to 95
Manganese (Mn), % 0 to 0.5
0.6 to 1.0
Molybdenum (Mo), % 0 to 1.0
0.3 to 0.6
Nickel (Ni), % 35 to 37
3.0 to 4.0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.020