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EN 1.4650 Stainless Steel vs. AISI 309Cb Stainless Steel

Both EN 1.4650 stainless steel and AISI 309Cb stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 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 1.4650 stainless steel and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 48
39
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 440
390
Tensile Strength: Ultimate (UTS), MPa 620
580
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
510
Maximum Temperature: Mechanical, °C 970
1090
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
23
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
4.1
Embodied Energy, MJ/kg 43
59
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 20
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
180
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 18.5 to 20
22 to 24
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 65.8 to 72.5
56 to 66
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 9.0 to 10
12 to 16
Niobium (Nb), % 0
0 to 1.1
Nitrogen (N), % 0 to 0.080
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030