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EN 1.4006 Stainless Steel vs. EN 1.4439 Stainless Steel

Both EN 1.4006 stainless steel and EN 1.4439 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4006 stainless steel and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 23
40
Fatigue Strength, MPa 150 to 300
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 370 to 460
470
Tensile Strength: Ultimate (UTS), MPa 590 to 750
680
Tensile Strength: Yield (Proof), MPa 230 to 510
310

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 740
980
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
4.5
Embodied Energy, MJ/kg 27
61
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 13
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 110
220
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 660
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 27
24
Strength to Weight: Bending, points 20 to 24
22
Thermal Diffusivity, mm2/s 8.1
3.8
Thermal Shock Resistance, points 21 to 26
15

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 13.5
16.5 to 18.5
Iron (Fe), % 83.1 to 88.4
58.7 to 66.9
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.75
12.5 to 14.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015