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EN 1.1158 Steel vs. EN 1.4468 Stainless Steel

Both EN 1.1158 steel and EN 1.4468 stainless steel are iron alloys. They have 65% 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 1.1158 steel and the bottom bar is EN 1.4468 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23 to 24
25
Fatigue Strength, MPa 170 to 220
380
Impact Strength: V-Notched Charpy, J 28 to 40
56
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 470 to 500
730
Tensile Strength: Yield (Proof), MPa 240 to 310
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
17
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 47
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 110
170
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
730
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 18
26
Strength to Weight: Bending, points 17 to 18
23
Thermal Diffusivity, mm2/s 13
4.6
Thermal Shock Resistance, points 15 to 16
20

Alloy Composition

Carbon (C), % 0.22 to 0.29
0 to 0.030
Chromium (Cr), % 0 to 0.4
24.5 to 26.5
Iron (Fe), % 97.6 to 99.38
59.7 to 67.4
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
2.5 to 3.5
Nickel (Ni), % 0 to 0.4
5.5 to 7.0
Nitrogen (N), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.025