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EN 1.4640 Stainless Steel vs. EN 1.3961 Alloy

Both EN 1.4640 stainless steel and EN 1.3961 alloy are iron alloys. They have 70% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
31
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
72
Shear Strength, MPa 440 to 460
300
Tensile Strength: Ultimate (UTS), MPa 620 to 650
450
Tensile Strength: Yield (Proof), MPa 240 to 260
310

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 16
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
25
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.8
4.8
Embodied Energy, MJ/kg 40
66
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250 to 260
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 170
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 23
15
Strength to Weight: Bending, points 21
16
Thermal Shock Resistance, points 14 to 15
130

Alloy Composition

Carbon (C), % 0.030 to 0.080
0 to 0.050
Chromium (Cr), % 18 to 19
0 to 0.25
Copper (Cu), % 1.3 to 2.0
0
Iron (Fe), % 67.4 to 73.6
60.7 to 65
Manganese (Mn), % 1.5 to 4.0
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 5.5 to 6.9
35 to 37
Nitrogen (N), % 0.030 to 0.11
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.020