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AISI 420F Stainless Steel vs. EN 1.4310 Stainless Steel

Both AISI 420F stainless steel and EN 1.4310 stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is AISI 420F stainless steel and the bottom bar is EN 1.4310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
14 to 45
Fatigue Strength, MPa 270
240 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 460
510 to 550
Tensile Strength: Ultimate (UTS), MPa 740
730 to 900
Tensile Strength: Yield (Proof), MPa 430
260 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 760
910
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 14
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 480
170 to 830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
26 to 32
Strength to Weight: Bending, points 23
23 to 27
Thermal Diffusivity, mm2/s 6.8
4.0
Thermal Shock Resistance, points 27
15 to 18

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.050 to 0.15
Chromium (Cr), % 12 to 14
16 to 19
Iron (Fe), % 82.4 to 87.6
66.4 to 78
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 0
6.0 to 9.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.060
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0.15 to 0.35
0 to 0.015