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AISI 409Cb Stainless Steel vs. EN 1.4028 Stainless Steel

Both AISI 409Cb stainless steel and EN 1.4028 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is AISI 409Cb stainless steel and the bottom bar is EN 1.4028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
11 to 17
Fatigue Strength, MPa 140
230 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
410 to 550
Tensile Strength: Ultimate (UTS), MPa 420
660 to 930
Tensile Strength: Yield (Proof), MPa 200
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 710
760
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
30
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.2
1.9
Embodied Energy, MJ/kg 31
27
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
94 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 100
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
24 to 33
Strength to Weight: Bending, points 16
22 to 27
Thermal Diffusivity, mm2/s 6.7
8.1
Thermal Shock Resistance, points 15
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.060
0.26 to 0.35
Chromium (Cr), % 10.5 to 11.7
12 to 14
Iron (Fe), % 84.9 to 89.5
83.1 to 87.7
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015