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AISI 431 Stainless Steel vs. EN 1.4659 Stainless Steel

Both AISI 431 stainless steel and EN 1.4659 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, 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 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 15 to 17
49
Fatigue Strength, MPa 430 to 610
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 550 to 840
640
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
900
Tensile Strength: Yield (Proof), MPa 710 to 1040
480

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
440
Maximum Temperature: Mechanical, °C 850
1100
Melting Completion (Liquidus), °C 1510
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 26
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.2
6.5
Embodied Energy, MJ/kg 31
89
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 16
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
370
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 50
31
Strength to Weight: Bending, points 27 to 36
25
Thermal Diffusivity, mm2/s 7.0
3.2
Thermal Shock Resistance, points 28 to 43
19

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.020
Chromium (Cr), % 15 to 17
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 78.2 to 83.8
35.7 to 45.7
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 1.3 to 2.5
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5