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AISI 310HCb Stainless Steel vs. SAE-AISI 8740 Steel

Both AISI 310HCb stainless steel and SAE-AISI 8740 steel are iron alloys. They have 55% 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 AISI 310HCb stainless steel and the bottom bar is SAE-AISI 8740 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
11 to 23
Fatigue Strength, MPa 210
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 410
370 to 400
Tensile Strength: Ultimate (UTS), MPa 590
580 to 670
Tensile Strength: Yield (Proof), MPa 230
380 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.5
Embodied Energy, MJ/kg 69
20
Embodied Water, L/kg 190
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
390 to 850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
20 to 24
Strength to Weight: Bending, points 20
20 to 22
Thermal Diffusivity, mm2/s 3.9
10
Thermal Shock Resistance, points 13
17 to 20

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.38 to 0.43
Chromium (Cr), % 24 to 26
0.4 to 0.6
Iron (Fe), % 48 to 57
96.5 to 97.7
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 19 to 22
0.4 to 0.7
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040