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EN 1.4740 Stainless Steel vs. EN 1.5414 Steel

Both EN 1.4740 stainless steel and EN 1.5414 steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4740 stainless steel and the bottom bar is EN 1.5414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 22
22
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 900
410
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 18
44
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.6
Embodied Energy, MJ/kg 32
21
Embodied Water, L/kg 120
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 4.8
12

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.2
Chromium (Cr), % 16 to 19
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 75.4 to 82.7
96.4 to 98.7
Manganese (Mn), % 0 to 1.0
0.9 to 1.5
Molybdenum (Mo), % 0 to 0.5
0.45 to 0.6
Nickel (Ni), % 0 to 1.0
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 1.0 to 2.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.0050