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EN 1.4580 Stainless Steel vs. AISI 409Cb Stainless Steel

Both EN 1.4580 stainless steel and AISI 409Cb stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 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 EN 1.4580 stainless steel and the bottom bar is AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
24
Fatigue Strength, MPa 210
140
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Shear Strength, MPa 430
270
Tensile Strength: Ultimate (UTS), MPa 620
420
Tensile Strength: Yield (Proof), MPa 250
200

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 480
440
Maximum Temperature: Mechanical, °C 950
710
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 22
8.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.2
Embodied Energy, MJ/kg 60
31
Embodied Water, L/kg 150
94

Common Calculations

PREN (Pitting Resistance) 25
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
83
Resilience: Unit (Modulus of Resilience), kJ/m3 150
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 21
16
Thermal Diffusivity, mm2/s 4.0
6.7
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 16.5 to 18.5
10.5 to 11.7
Iron (Fe), % 61.4 to 71
84.9 to 89.5
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10.5 to 13.5
0 to 0.5
Niobium (Nb), % 0 to 1.0
0 to 0.75
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.040