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EN 1.7039 Steel vs. EN 1.4477 Stainless Steel

Both EN 1.7039 steel and EN 1.4477 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.7039 steel and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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 530 to 1850
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 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
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 1.4
3.7
Embodied Energy, MJ/kg 19
52
Embodied Water, L/kg 51
190

Common Calculations

Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 65
31 to 33
Strength to Weight: Bending, points 19 to 43
26 to 27
Thermal Diffusivity, mm2/s 12
3.5
Thermal Shock Resistance, points 16 to 54
23 to 25

Alloy Composition

Carbon (C), % 0.38 to 0.45
0 to 0.030
Chromium (Cr), % 0.9 to 1.2
28 to 30
Copper (Cu), % 0 to 0.25
0 to 0.8
Iron (Fe), % 96.8 to 98.1
56.6 to 63.6
Manganese (Mn), % 0.6 to 0.9
0.8 to 1.5
Molybdenum (Mo), % 0
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 0.3
0 to 0.5
Sulfur (S), % 0.020 to 0.040
0 to 0.015