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EN 1.3961 Alloy vs. AISI 418 Stainless Steel

Both EN 1.3961 alloy and AISI 418 stainless steel are iron alloys. They have 66% 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 AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 31
17
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 300
680
Tensile Strength: Ultimate (UTS), MPa 450
1100
Tensile Strength: Yield (Proof), MPa 310
850

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1500
Melting Onset (Solidus), °C 1390
1460
Specific Heat Capacity, J/kg-K 460
470
Thermal Expansion, µm/m-K 1.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 4.8
2.9
Embodied Energy, MJ/kg 66
41
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
170
Resilience: Unit (Modulus of Resilience), kJ/m3 250
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 15
38
Strength to Weight: Bending, points 16
29
Thermal Shock Resistance, points 130
40

Alloy Composition

Carbon (C), % 0 to 0.050
0.15 to 0.2
Chromium (Cr), % 0 to 0.25
12 to 14
Iron (Fe), % 60.7 to 65
78.5 to 83.6
Manganese (Mn), % 0 to 0.5
0 to 0.5
Molybdenum (Mo), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 35 to 37
1.8 to 2.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5