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AISI 420F Stainless Steel vs. EN 1.4971 Stainless Steel

Both AISI 420F stainless steel and EN 1.4971 stainless steel are iron alloys. They have 45% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
240
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 18
34
Fatigue Strength, MPa 270
270
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
81
Shear Strength, MPa 460
530
Tensile Strength: Ultimate (UTS), MPa 740
800
Tensile Strength: Yield (Proof), MPa 430
340

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
570
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
15

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
70
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 2.0
7.6
Embodied Energy, MJ/kg 28
110
Embodied Water, L/kg 100
300

Common Calculations

PREN (Pitting Resistance) 14
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
220
Resilience: Unit (Modulus of Resilience), kJ/m3 480
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 6.8
3.4
Thermal Shock Resistance, points 27
19

Alloy Composition

Carbon (C), % 0.3 to 0.4
0.080 to 0.16
Chromium (Cr), % 12 to 14
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Iron (Fe), % 82.4 to 87.6
24.3 to 37.1
Manganese (Mn), % 0 to 1.3
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.060
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0