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AISI 321 Stainless Steel vs. EN 1.4568 Stainless Steel

Both AISI 321 stainless steel and EN 1.4568 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 321 stainless steel and the bottom bar is EN 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 50
2.3 to 21
Fatigue Strength, MPa 220 to 270
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 420 to 460
520 to 930
Tensile Strength: Ultimate (UTS), MPa 590 to 690
830 to 1620
Tensile Strength: Yield (Proof), MPa 220 to 350
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 480
410
Maximum Temperature: Mechanical, °C 870
890
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.2
2.8
Embodied Energy, MJ/kg 45
40
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 19
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 230
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 310
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
30 to 58
Strength to Weight: Bending, points 20 to 22
25 to 40
Thermal Diffusivity, mm2/s 4.1
4.3
Thermal Shock Resistance, points 13 to 15
23 to 46

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.5
Carbon (C), % 0 to 0.080
0 to 0.090
Chromium (Cr), % 17 to 19
16 to 18
Iron (Fe), % 65.3 to 74
70.9 to 76.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 9.0 to 12
6.5 to 7.8
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.7
0