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SAE-AISI 9310 Steel vs. SAE-AISI 8620 Steel

Both SAE-AISI 9310 steel and SAE-AISI 8620 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9310 steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 540 to 610
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 19
13 to 31
Fatigue Strength, MPa 300 to 390
270 to 360
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 510 to 570
340 to 420
Tensile Strength: Ultimate (UTS), MPa 820 to 910
520 to 690
Tensile Strength: Yield (Proof), MPa 450 to 570
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.4
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.5
Embodied Energy, MJ/kg 24
20
Embodied Water, L/kg 57
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 150
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 860
340 to 880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29 to 32
18 to 24
Strength to Weight: Bending, points 25 to 27
18 to 22
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 24 to 27
15 to 20

Alloy Composition

Carbon (C), % 0.080 to 0.13
0.18 to 0.23
Chromium (Cr), % 1.0 to 1.4
0.4 to 0.6
Iron (Fe), % 93.8 to 95.2
96.9 to 98
Manganese (Mn), % 0.45 to 0.65
0.7 to 0.9
Molybdenum (Mo), % 0.080 to 0.15
0.15 to 0.25
Nickel (Ni), % 3.0 to 3.5
0.4 to 0.7
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0.2 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.012
0 to 0.040

Comparable Variants