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SAE-AISI 8620 Steel vs. EN 1.4477 Stainless Steel

Both SAE-AISI 8620 steel and EN 1.4477 stainless steel are iron alloys. They have 62% 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 SAE-AISI 8620 steel and the bottom bar is EN 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 210
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 13 to 31
22 to 23
Fatigue Strength, MPa 270 to 360
420 to 490
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Shear Strength, MPa 340 to 420
550 to 580
Tensile Strength: Ultimate (UTS), MPa 520 to 690
880 to 930
Tensile Strength: Yield (Proof), MPa 360 to 570
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
20
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.7
Embodied Energy, MJ/kg 20
52
Embodied Water, L/kg 50
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 150
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 880
940 to 1290
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18 to 24
31 to 33
Strength to Weight: Bending, points 18 to 22
26 to 27
Thermal Diffusivity, mm2/s 10
3.5
Thermal Shock Resistance, points 15 to 20
23 to 25

Alloy Composition

Carbon (C), % 0.18 to 0.23
0 to 0.030
Chromium (Cr), % 0.4 to 0.6
28 to 30
Copper (Cu), % 0
0 to 0.8
Iron (Fe), % 96.9 to 98
56.6 to 63.6
Manganese (Mn), % 0.7 to 0.9
0.8 to 1.5
Molybdenum (Mo), % 0.15 to 0.25
1.5 to 2.6
Nickel (Ni), % 0.4 to 0.7
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015

Comparable Variants