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EN 1.4742 Stainless Steel vs. EN 1.3559 Steel

Both EN 1.4742 stainless steel and EN 1.3559 steel are iron alloys. They have 81% of their average alloy composition in common. There are 25 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 EN 1.4742 stainless steel and the bottom bar is EN 1.3559 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150 to 180
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 600
500 to 1420

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 19
45
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.2
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 32
19
Embodied Water, L/kg 130
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
18 to 50
Strength to Weight: Bending, points 21
18 to 36
Thermal Diffusivity, mm2/s 5.1
12
Thermal Shock Resistance, points 21
15 to 42

Alloy Composition

Aluminum (Al), % 0.7 to 1.2
0 to 0.050
Carbon (C), % 0 to 0.12
0.17 to 0.23
Chromium (Cr), % 17 to 19
0.6 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 77.2 to 81.6
97.2 to 98.8
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Oxygen (O), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.7 to 1.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.030