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EN 1.7149 Steel vs. S35045 Stainless Steel

Both EN 1.7149 steel and S35045 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 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 1.7149 steel and the bottom bar is S35045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 500 to 1460
540

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
34
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
5.8
Embodied Energy, MJ/kg 19
83
Embodied Water, L/kg 52
230

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18 to 52
19
Strength to Weight: Bending, points 18 to 36
19
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 15 to 42
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.17 to 0.22
0.060 to 0.1
Chromium (Cr), % 1.0 to 1.3
25 to 29
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 96.5 to 97.7
29.4 to 42.6
Manganese (Mn), % 1.1 to 1.4
0 to 1.5
Nickel (Ni), % 0
32 to 37
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0.020 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6