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EN 1.3963 Alloy vs. AISI 321 Stainless Steel

Both EN 1.3963 alloy and AISI 321 stainless steel are iron alloys. They have 74% 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 1.3963 alloy and the bottom bar is AISI 321 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 29
34 to 50
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 290
420 to 460
Tensile Strength: Ultimate (UTS), MPa 440
590 to 690
Tensile Strength: Yield (Proof), MPa 310
220 to 350

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 1.6
17

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.8
3.2
Embodied Energy, MJ/kg 66
45
Embodied Water, L/kg 110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 260
130 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 15
21 to 25
Strength to Weight: Bending, points 16
20 to 22
Thermal Shock Resistance, points 110
13 to 15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 0 to 0.25
17 to 19
Iron (Fe), % 60.5 to 64.9
65.3 to 74
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 35 to 37
9.0 to 12
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 0.75
Sulfur (S), % 0.1 to 0.2
0 to 0.030
Titanium (Ti), % 0
0 to 0.7