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AISI 440A Stainless Steel vs. EN 1.4606 Stainless Steel

Both AISI 440A stainless steel and EN 1.4606 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 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 AISI 440A stainless steel and the bottom bar is EN 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 5.0 to 20
23 to 39
Fatigue Strength, MPa 270 to 790
240 to 420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
75
Shear Strength, MPa 450 to 1040
410 to 640
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
600 to 1020
Tensile Strength: Yield (Proof), MPa 420 to 1650
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
770
Maximum Temperature: Mechanical, °C 760
910
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
14
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
6.0
Embodied Energy, MJ/kg 31
87
Embodied Water, L/kg 120
170

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
190 to 200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 65
21 to 36
Strength to Weight: Bending, points 23 to 43
20 to 28
Thermal Diffusivity, mm2/s 6.2
3.7
Thermal Shock Resistance, points 26 to 65
21 to 35

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.6 to 0.75
0 to 0.080
Chromium (Cr), % 16 to 18
13 to 16
Iron (Fe), % 78.4 to 83.4
49.2 to 59
Manganese (Mn), % 0 to 1.0
1.0 to 2.0
Molybdenum (Mo), % 0 to 0.75
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5