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EN 1.3975 Stainless Steel vs. SAE-AISI 8620 Steel

Both EN 1.3975 stainless steel and SAE-AISI 8620 steel are iron alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
13 to 31
Fatigue Strength, MPa 230
270 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 660
520 to 690
Tensile Strength: Yield (Proof), MPa 320
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 910
410
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
2.6
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 47
20
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 270
340 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 24
18 to 24
Strength to Weight: Bending, points 22
18 to 22
Thermal Shock Resistance, points 15
15 to 20

Alloy Composition

Carbon (C), % 0 to 0.050
0.18 to 0.23
Chromium (Cr), % 16 to 18
0.4 to 0.6
Iron (Fe), % 58.2 to 65.4
96.9 to 98
Manganese (Mn), % 7.0 to 9.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 1.0
0.15 to 0.25
Nickel (Ni), % 8.0 to 9.0
0.4 to 0.7
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 3.5 to 4.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040