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S43940 Stainless Steel vs. EN 1.3539 Steel

Both S43940 stainless steel and EN 1.3539 steel are iron alloys. They have 83% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S43940 stainless steel and the bottom bar is EN 1.3539 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
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 490
670

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
450
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.2
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.7
Embodied Energy, MJ/kg 38
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 18
24
Strength to Weight: Bending, points 18
22
Thermal Diffusivity, mm2/s 6.8
11
Thermal Shock Resistance, points 18
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.030
0.93 to 1.1
Chromium (Cr), % 17.5 to 18.5
1.8 to 2.1
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 78.2 to 82.1
95.2 to 96.5
Manganese (Mn), % 0 to 1.0
0.8 to 1.1
Molybdenum (Mo), % 0
0.5 to 0.6
Niobium (Nb), % 0.3 to 0.6
0
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
Titanium (Ti), % 0.1 to 0.6
0