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EN 1.3539 Steel vs. AISI 440A Stainless Steel

Both EN 1.3539 steel and AISI 440A stainless 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 EN 1.3539 steel and the bottom bar is AISI 440A stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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