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EN 1.4310 Stainless Steel vs. SAE-AISI 8622 Steel

Both EN 1.4310 stainless steel and SAE-AISI 8622 steel are iron alloys. They have 75% 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 EN 1.4310 stainless steel and the bottom bar is SAE-AISI 8622 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
26
Fatigue Strength, MPa 240 to 330
240
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 510 to 550
320
Tensile Strength: Ultimate (UTS), MPa 730 to 900
500
Tensile Strength: Yield (Proof), MPa 260 to 570
330

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
410
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
38
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.5
Embodied Energy, MJ/kg 42
20
Embodied Water, L/kg 140
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 32
18
Strength to Weight: Bending, points 23 to 27
18
Thermal Diffusivity, mm2/s 4.0
10
Thermal Shock Resistance, points 15 to 18
17

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.2 to 0.25
Chromium (Cr), % 16 to 19
0.4 to 0.6
Iron (Fe), % 66.4 to 78
96.9 to 98
Manganese (Mn), % 0 to 2.0
0.7 to 0.9
Molybdenum (Mo), % 0 to 0.8
0.15 to 0.25
Nickel (Ni), % 6.0 to 9.5
0.4 to 0.7
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 2.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040