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EN 1.7710 Steel vs. AISI 420F Stainless Steel

Both EN 1.7710 steel and AISI 420F stainless steel are iron alloys. They have 88% 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 1.7710 steel and the bottom bar is AISI 420F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 320
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 11
18
Fatigue Strength, MPa 500 to 620
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 930 to 1070
740
Tensile Strength: Yield (Proof), MPa 800 to 1060
430

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 440
760
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 41
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.2
2.0
Embodied Energy, MJ/kg 30
28
Embodied Water, L/kg 57
100

Common Calculations

PREN (Pitting Resistance) 4.5
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1680 to 2970
480
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33 to 38
27
Strength to Weight: Bending, points 27 to 30
23
Thermal Diffusivity, mm2/s 11
6.8
Thermal Shock Resistance, points 27 to 31
27

Alloy Composition

Carbon (C), % 0.12 to 0.18
0.3 to 0.4
Chromium (Cr), % 1.3 to 1.8
12 to 14
Iron (Fe), % 95.1 to 97
82.4 to 87.6
Manganese (Mn), % 0.6 to 1.0
0 to 1.3
Molybdenum (Mo), % 0.8 to 1.0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.060
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35
Vanadium (V), % 0.15 to 0.25
0