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EN 1.4458 Stainless Steel vs. EN 1.1191 Steel

Both EN 1.4458 stainless steel and EN 1.1191 steel are iron alloys. They have 48% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 stainless steel and the bottom bar is EN 1.1191 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16 to 17
Fatigue Strength, MPa 150
210 to 290
Impact Strength: V-Notched Charpy, J 67
16 to 29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 510
630 to 700
Tensile Strength: Yield (Proof), MPa 190
310 to 440

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
48
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 75
19
Embodied Water, L/kg 200
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 89
260 to 510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22 to 25
Strength to Weight: Bending, points 18
21 to 22
Thermal Diffusivity, mm2/s 4.2
13
Thermal Shock Resistance, points 12
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0.42 to 0.5
Chromium (Cr), % 19 to 22
0 to 0.4
Copper (Cu), % 0 to 2.0
0
Iron (Fe), % 40.2 to 53
97.3 to 99.08
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.1
Nickel (Ni), % 26 to 30
0 to 0.4
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035