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EN 1.4104 Stainless Steel vs. EN 1.1158 Steel

Both EN 1.4104 stainless steel and EN 1.1158 steel are iron alloys. They have 83% 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 1.4104 stainless steel and the bottom bar is EN 1.1158 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11 to 23
23 to 24
Fatigue Strength, MPa 230 to 310
170 to 220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 450
300 to 320
Tensile Strength: Ultimate (UTS), MPa 630 to 750
470 to 500
Tensile Strength: Yield (Proof), MPa 350 to 560
240 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 30
19
Embodied Water, L/kg 120
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
150 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23 to 27
17 to 18
Strength to Weight: Bending, points 21 to 24
17 to 18
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 22 to 27
15 to 16

Alloy Composition

Carbon (C), % 0.1 to 0.17
0.22 to 0.29
Chromium (Cr), % 15.5 to 17.5
0 to 0.4
Iron (Fe), % 78.8 to 84.1
97.6 to 99.38
Manganese (Mn), % 0 to 1.5
0.4 to 0.7
Molybdenum (Mo), % 0.2 to 0.6
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0.15 to 0.35
0 to 0.035

Comparable Variants