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EN 1.4658 Stainless Steel vs. AISI 420F Stainless Steel

Both EN 1.4658 stainless steel and AISI 420F stainless steel are iron alloys. They have 71% 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 1.4658 stainless steel and the bottom bar is AISI 420F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
230
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 28
18
Fatigue Strength, MPa 530
270
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 580
460
Tensile Strength: Ultimate (UTS), MPa 900
740
Tensile Strength: Yield (Proof), MPa 730
430

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 460
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 25
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.5
2.0
Embodied Energy, MJ/kg 61
28
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 49
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
480
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
27
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 4.3
6.8
Thermal Shock Resistance, points 24
27

Alloy Composition

Carbon (C), % 0 to 0.030
0.3 to 0.4
Chromium (Cr), % 26 to 29
12 to 14
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
82.4 to 87.6
Manganese (Mn), % 0 to 1.5
0 to 1.3
Molybdenum (Mo), % 4.0 to 5.0
0 to 0.5
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0.15 to 0.35