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S20431 Stainless Steel vs. EN 1.4659 Stainless Steel

Both S20431 stainless steel and EN 1.4659 stainless steel are iron alloys. They have 66% 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 S20431 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 46
49
Fatigue Strength, MPa 320
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Shear Strength, MPa 500
640
Tensile Strength: Ultimate (UTS), MPa 710
900
Tensile Strength: Yield (Proof), MPa 350
480

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 890
1100
Melting Completion (Liquidus), °C 1400
1480
Melting Onset (Solidus), °C 1360
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.5
6.5
Embodied Energy, MJ/kg 36
89
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 20
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
370
Resilience: Unit (Modulus of Resilience), kJ/m3 310
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
31
Strength to Weight: Bending, points 23
25
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.020
Chromium (Cr), % 17 to 18
23 to 25
Copper (Cu), % 1.5 to 3.5
1.0 to 2.0
Iron (Fe), % 66.1 to 74.4
35.7 to 45.7
Manganese (Mn), % 5.0 to 7.0
2.0 to 4.0
Molybdenum (Mo), % 0
5.5 to 6.5
Nickel (Ni), % 2.0 to 4.0
21 to 23
Nitrogen (N), % 0.1 to 0.25
0.35 to 0.5
Phosphorus (P), % 0 to 0.045
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