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EN 1.4612 Stainless Steel vs. SAE-AISI 8620 Steel

Both EN 1.4612 stainless steel and SAE-AISI 8620 steel are iron alloys. They have 75% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
13 to 31
Fatigue Strength, MPa 860 to 950
270 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 1010 to 1110
340 to 420
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
520 to 690
Tensile Strength: Yield (Proof), MPa 1570 to 1730
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 16
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.5
Embodied Energy, MJ/kg 50
20
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
86 to 150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 60 to 65
18 to 24
Strength to Weight: Bending, points 40 to 43
18 to 22
Thermal Shock Resistance, points 58 to 63
15 to 20

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0.18 to 0.23
Chromium (Cr), % 11 to 12.5
0.4 to 0.6
Iron (Fe), % 71.5 to 75.5
96.9 to 98
Manganese (Mn), % 0 to 0.1
0.7 to 0.9
Molybdenum (Mo), % 1.8 to 2.3
0.15 to 0.25
Nickel (Ni), % 10.2 to 11.3
0.4 to 0.7
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0.15 to 0.35
Sulfur (S), % 0 to 0.0050
0 to 0.040
Titanium (Ti), % 0.2 to 0.5
0

Comparable Variants