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AISI 309Cb Stainless Steel vs. SAE-AISI 1008 Steel

Both AISI 309Cb stainless steel and SAE-AISI 1008 steel are iron alloys. They have 61% of their average alloy composition in common. There are 32 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 309Cb stainless steel and the bottom bar is SAE-AISI 1008 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
93 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
22 to 33
Fatigue Strength, MPa 200
150 to 220
Poisson's Ratio 0.28
0.29
Reduction in Area, % 46
50 to 63
Shear Modulus, GPa 78
73
Shear Strength, MPa 390
220 to 230
Tensile Strength: Ultimate (UTS), MPa 580
330 to 370
Tensile Strength: Yield (Proof), MPa 230
190 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
62
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.1
1.4
Embodied Energy, MJ/kg 59
18
Embodied Water, L/kg 170
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
78 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 140
92 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
12 to 13
Strength to Weight: Bending, points 20
13 to 15
Thermal Diffusivity, mm2/s 4.0
17
Thermal Shock Resistance, points 13
10 to 12

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 22 to 24
0
Iron (Fe), % 56 to 66
99.31 to 99.7
Manganese (Mn), % 0 to 2.0
0.3 to 0.5
Nickel (Ni), % 12 to 16
0
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0 to 0.050