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AISI 440A Stainless Steel vs. EN 1.3539 Steel

Both AISI 440A stainless steel and EN 1.3539 steel are iron alloys. They have 85% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 1.3539 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
670

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 760
450
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
3.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.7
Embodied Energy, MJ/kg 31
22
Embodied Water, L/kg 120
57

Common Calculations

PREN (Pitting Resistance) 18
3.8
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 65
24
Strength to Weight: Bending, points 23 to 43
22
Thermal Diffusivity, mm2/s 6.2
11
Thermal Shock Resistance, points 26 to 65
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0.6 to 0.75
0.93 to 1.1
Chromium (Cr), % 16 to 18
1.8 to 2.1
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 78.4 to 83.4
95.2 to 96.5
Manganese (Mn), % 0 to 1.0
0.8 to 1.1
Molybdenum (Mo), % 0 to 0.75
0.5 to 0.6
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.4 to 0.6
Sulfur (S), % 0 to 0.015
0 to 0.030