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AISI 414 Stainless Steel vs. AISI 309Cb Stainless Steel

Both AISI 414 stainless steel and AISI 309Cb stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 33 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 AISI 414 stainless steel and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
39
Fatigue Strength, MPa 430 to 480
200
Poisson's Ratio 0.28
0.28
Reduction in Area, % 50
46
Shear Modulus, GPa 76
78
Shear Strength, MPa 550 to 590
390
Tensile Strength: Ultimate (UTS), MPa 900 to 960
580
Tensile Strength: Yield (Proof), MPa 700 to 790
230

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 750
1090
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.1
4.1
Embodied Energy, MJ/kg 29
59
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 13
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1260 to 1590
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 34
20
Strength to Weight: Bending, points 27 to 28
20
Thermal Diffusivity, mm2/s 6.7
4.0
Thermal Shock Resistance, points 33 to 35
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 11.5 to 13.5
22 to 24
Iron (Fe), % 81.8 to 87.3
56 to 66
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 1.3 to 2.5
12 to 16
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030