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S43940 Stainless Steel vs. EN 1.4659 Stainless Steel

Both S43940 stainless steel and EN 1.4659 stainless steel are iron alloys. They have 60% 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 S43940 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 21
49
Fatigue Strength, MPa 180
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 310
640
Tensile Strength: Ultimate (UTS), MPa 490
900
Tensile Strength: Yield (Proof), MPa 280
480

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 540
440
Maximum Temperature: Mechanical, °C 890
1100
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.6
6.5
Embodied Energy, MJ/kg 38
89
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 18
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
370
Resilience: Unit (Modulus of Resilience), kJ/m3 200
550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
31
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 6.8
3.2
Thermal Shock Resistance, points 18
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 17.5 to 18.5
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 78.2 to 82.1
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), % 0
21 to 23
Niobium (Nb), % 0.3 to 0.6
0
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 0.015
0 to 0.010
Titanium (Ti), % 0.1 to 0.6
0
Tungsten (W), % 0
1.5 to 2.5