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AISI 309HCb Stainless Steel vs. Grade TDC Steel

Both AISI 309HCb stainless steel and grade TDC steel are iron alloys. They have 62% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AISI 309HCb stainless steel and the bottom bar is grade TDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
510
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 590
1700

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 59
19
Embodied Water, L/kg 170
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
60
Strength to Weight: Bending, points 20
40
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 13
50

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.6 to 0.75
Chromium (Cr), % 22 to 24
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 56 to 66
98 to 99.4
Manganese (Mn), % 0 to 2.0
0.5 to 1.2
Nickel (Ni), % 12 to 16
0
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0.1 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.020