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EN 1.1191 Steel vs. S44635 Stainless Steel

Both EN 1.1191 steel and S44635 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 S44635 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16 to 17
23
Fatigue Strength, MPa 210 to 290
390
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Shear Strength, MPa 380 to 430
450
Tensile Strength: Ultimate (UTS), MPa 630 to 700
710
Tensile Strength: Yield (Proof), MPa 310 to 440
580

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.4
Embodied Energy, MJ/kg 19
62
Embodied Water, L/kg 47
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
150
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
810
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
25
Strength to Weight: Bending, points 21 to 22
23
Thermal Diffusivity, mm2/s 13
4.4
Thermal Shock Resistance, points 20 to 22
23

Alloy Composition

Carbon (C), % 0.42 to 0.5
0 to 0.025
Chromium (Cr), % 0 to 0.4
24.5 to 26
Iron (Fe), % 97.3 to 99.08
61.5 to 68.5
Manganese (Mn), % 0.5 to 0.8
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
3.5 to 4.5
Nickel (Ni), % 0 to 0.4
3.5 to 4.5
Niobium (Nb), % 0
0.2 to 0.8
Nitrogen (N), % 0
0 to 0.035
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0.2 to 0.8