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AISI 420F Stainless Steel vs. EN 1.1158 Steel

Both AISI 420F stainless steel and EN 1.1158 steel are iron alloys. They have 86% 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 AISI 420F stainless steel and the bottom bar is EN 1.1158 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
23 to 24
Fatigue Strength, MPa 270
170 to 220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460
300 to 320
Tensile Strength: Ultimate (UTS), MPa 740
470 to 500
Tensile Strength: Yield (Proof), MPa 430
240 to 310

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
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 3.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 28
19
Embodied Water, L/kg 100
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 480
150 to 250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
17 to 18
Strength to Weight: Bending, points 23
17 to 18
Thermal Diffusivity, mm2/s 6.8
13
Thermal Shock Resistance, points 27
15 to 16

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.22 to 0.29
Chromium (Cr), % 12 to 14
0 to 0.4
Iron (Fe), % 82.4 to 87.6
97.6 to 99.38
Manganese (Mn), % 0 to 1.3
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.060
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