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EN 1.3961 Alloy vs. EN 1.4578 Stainless Steel

Both EN 1.3961 alloy and EN 1.4578 stainless steel are iron alloys. They have 75% 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 1.4578 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 31
51
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 300
400
Tensile Strength: Ultimate (UTS), MPa 450
550
Tensile Strength: Yield (Proof), MPa 310
200

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.3
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
19
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 4.8
3.7
Embodied Energy, MJ/kg 66
51
Embodied Water, L/kg 110
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 250
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 16
19
Thermal Shock Resistance, points 130
12

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.040
Chromium (Cr), % 0 to 0.25
16.5 to 17.5
Copper (Cu), % 0
3.0 to 3.5
Iron (Fe), % 60.7 to 65
62.3 to 68.5
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
2.0 to 2.5
Nickel (Ni), % 35 to 37
10 to 11
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015