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EN 1.1191 Steel vs. S35045 Stainless Steel

Both EN 1.1191 steel and S35045 stainless steel are iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is S35045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 17
39
Fatigue Strength, MPa 210 to 290
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Shear Strength, MPa 380 to 430
370
Tensile Strength: Ultimate (UTS), MPa 630 to 700
540
Tensile Strength: Yield (Proof), MPa 310 to 440
190

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
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 48
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
34
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
5.8
Embodied Energy, MJ/kg 19
83
Embodied Water, L/kg 47
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
170
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
19
Strength to Weight: Bending, points 21 to 22
19
Thermal Diffusivity, mm2/s 13
3.2
Thermal Shock Resistance, points 20 to 22
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0.42 to 0.5
0.060 to 0.1
Chromium (Cr), % 0 to 0.4
25 to 29
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 97.3 to 99.08
29.4 to 42.6
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
32 to 37
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6