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EN 1.1191 Steel vs. EN 1.4658 Stainless Steel

Both EN 1.1191 steel and EN 1.4658 stainless steel are iron alloys. They have 59% of their average alloy composition in common. 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 EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 16 to 17
28
Fatigue Strength, MPa 210 to 290
530
Impact Strength: V-Notched Charpy, J 16 to 29
110
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
81
Shear Strength, MPa 380 to 430
580
Tensile Strength: Ultimate (UTS), MPa 630 to 700
900
Tensile Strength: Yield (Proof), MPa 310 to 440
730

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
16
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
4.5
Embodied Energy, MJ/kg 19
61
Embodied Water, L/kg 47
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
240
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
1280
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
32
Strength to Weight: Bending, points 21 to 22
26
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 20 to 22
24

Alloy Composition

Carbon (C), % 0.42 to 0.5
0 to 0.030
Chromium (Cr), % 0 to 0.4
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.3 to 99.08
50.9 to 63.7
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0 to 0.1
4.0 to 5.0
Nickel (Ni), % 0 to 0.4
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.010