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EN 1.7239 Steel vs. EN 1.4477 Stainless Steel

Both EN 1.7239 steel and EN 1.4477 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.7239 steel and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 480
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 660 to 1990
880 to 930

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.7
Embodied Energy, MJ/kg 20
52
Embodied Water, L/kg 50
190

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 71
31 to 33
Strength to Weight: Bending, points 21 to 45
26 to 27
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 19 to 59
23 to 25

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.030
Chromium (Cr), % 0.7 to 1.0
28 to 30
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 96.8 to 98
56.6 to 63.6
Manganese (Mn), % 0.7 to 1.0
0.8 to 1.5
Molybdenum (Mo), % 0.060 to 0.15
1.5 to 2.6
Nickel (Ni), % 0
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015