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EN 1.7709 Steel vs. EN 1.4005 Stainless Steel

Both EN 1.7709 steel and EN 1.4005 stainless steel are iron alloys. They have 88% 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 1.7709 steel and the bottom bar is EN 1.4005 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 650 to 780
630 to 750

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
760
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 33
30
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.3
2.0
Embodied Energy, MJ/kg 32
28
Embodied Water, L/kg 56
100

Common Calculations

PREN (Pitting Resistance) 3.6
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 27
23 to 27
Strength to Weight: Bending, points 21 to 24
21 to 24
Thermal Diffusivity, mm2/s 8.9
8.1
Thermal Shock Resistance, points 22 to 26
23 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Carbon (C), % 0.17 to 0.25
0.060 to 0.15
Chromium (Cr), % 1.2 to 1.5
12 to 14
Iron (Fe), % 95.2 to 97.5
82.4 to 87.8
Manganese (Mn), % 0.4 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.55 to 0.8
0 to 0.6
Nickel (Ni), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35
Vanadium (V), % 0.2 to 0.35
0

Comparable Variants