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AISI 309Cb Stainless Steel vs. EN 1.5681 Steel

Both AISI 309Cb stainless steel and EN 1.5681 steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 309Cb stainless steel and the bottom bar is EN 1.5681 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
20
Fatigue Strength, MPa 200
300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 580
630
Tensile Strength: Yield (Proof), MPa 230
430

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 23
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.1
1.9
Embodied Energy, MJ/kg 59
25
Embodied Water, L/kg 170
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 13
19

Alloy Composition

Carbon (C), % 0 to 0.080
0.060 to 0.12
Chromium (Cr), % 22 to 24
0
Iron (Fe), % 56 to 66
92.9 to 94.9
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Nickel (Ni), % 12 to 16
4.5 to 5.5
Niobium (Nb), % 0 to 1.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.75
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.020