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EN 1.3961 Alloy vs. EN 1.7390 Steel

Both EN 1.3961 alloy and EN 1.7390 steel are iron alloys. They have 64% of their average alloy composition in common. There are 24 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 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 31
16
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 72
74
Shear Strength, MPa 300
440
Tensile Strength: Ultimate (UTS), MPa 450
710
Tensile Strength: Yield (Proof), MPa 310
480

Thermal Properties

Latent Heat of Fusion, J/g 270
260
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
4.3
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.7
Embodied Energy, MJ/kg 66
23
Embodied Water, L/kg 110
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 250
600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 16
23
Thermal Shock Resistance, points 130
20

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.18
Chromium (Cr), % 0 to 0.25
4.0 to 6.0
Iron (Fe), % 60.7 to 65
91.9 to 95.3
Manganese (Mn), % 0 to 0.5
0.3 to 0.8
Molybdenum (Mo), % 0 to 1.0
0.45 to 0.65
Nickel (Ni), % 35 to 37
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.015