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AISI 431 Stainless Steel vs. EN 1.6368 Steel

Both AISI 431 stainless steel and EN 1.6368 steel are iron alloys. They have 83% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is EN 1.6368 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
18
Fatigue Strength, MPa 430 to 610
310 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 550 to 840
410 to 430
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
660 to 690
Tensile Strength: Yield (Proof), MPa 710 to 1040
460 to 490

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
410
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 31
22
Embodied Water, L/kg 120
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
580 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 50
23 to 24
Strength to Weight: Bending, points 27 to 36
21 to 22
Thermal Diffusivity, mm2/s 7.0
11
Thermal Shock Resistance, points 28 to 43
20

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.040
Carbon (C), % 0 to 0.2
0 to 0.17
Chromium (Cr), % 15 to 17
0 to 0.3
Copper (Cu), % 0
0.5 to 0.8
Iron (Fe), % 78.2 to 83.8
95.1 to 97.2
Manganese (Mn), % 0 to 1.0
0.8 to 1.2
Molybdenum (Mo), % 0
0.25 to 0.5
Nickel (Ni), % 1.3 to 2.5
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.25 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010