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EN 1.4024 Stainless Steel vs. AISI 309Cb Stainless Steel

Both EN 1.4024 stainless steel and AISI 309Cb stainless steel are iron alloys. They have 75% 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 EN 1.4024 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, % 15 to 22
39
Fatigue Strength, MPa 220 to 300
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 370 to 460
390
Tensile Strength: Ultimate (UTS), MPa 590 to 750
580
Tensile Strength: Yield (Proof), MPa 330 to 510
230

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 760
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 30
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
23
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
4.1
Embodied Energy, MJ/kg 27
59
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 13
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 660
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 27
20
Strength to Weight: Bending, points 20 to 24
20
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 21 to 26
13

Alloy Composition

Carbon (C), % 0.12 to 0.17
0 to 0.080
Chromium (Cr), % 12 to 14
22 to 24
Iron (Fe), % 83.8 to 87.9
56 to 66
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
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 0.015
0 to 0.030