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EN 1.4606 Stainless Steel vs. S21640 Stainless Steel

Both EN 1.4606 stainless steel and S21640 stainless steel are iron alloys. They have 77% 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 EN 1.4606 stainless steel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23 to 39
46
Fatigue Strength, MPa 240 to 420
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
78
Shear Strength, MPa 410 to 640
520
Tensile Strength: Ultimate (UTS), MPa 600 to 1020
740
Tensile Strength: Yield (Proof), MPa 280 to 630
350

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 770
490
Maximum Temperature: Mechanical, °C 910
940
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 26
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
3.6
Embodied Energy, MJ/kg 87
51
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 19
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
280
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 1010
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 36
27
Strength to Weight: Bending, points 20 to 28
23
Thermal Diffusivity, mm2/s 3.7
4.0
Thermal Shock Resistance, points 21 to 35
16

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 13 to 16
17.5 to 19.5
Iron (Fe), % 49.2 to 59
63 to 74.3
Manganese (Mn), % 1.0 to 2.0
3.5 to 6.5
Molybdenum (Mo), % 1.0 to 1.5
0.5 to 2.0
Nickel (Ni), % 24 to 27
4.0 to 6.5
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0.080 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 1.9 to 2.3
0
Vanadium (V), % 0.1 to 0.5
0