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EN 1.4571 Stainless Steel vs. AISI 309Cb Stainless Steel

Both EN 1.4571 stainless steel and AISI 309Cb stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 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 1.4571 stainless steel and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 40
39
Fatigue Strength, MPa 200 to 330
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 410 to 550
390
Tensile Strength: Ultimate (UTS), MPa 600 to 900
580
Tensile Strength: Yield (Proof), MPa 230 to 570
230

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 480
510
Maximum Temperature: Mechanical, °C 950
1090
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
23
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
4.1
Embodied Energy, MJ/kg 54
59
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 25
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
180
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 820
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
20
Strength to Weight: Bending, points 20 to 26
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 13 to 20
13

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 16.5 to 18.5
22 to 24
Iron (Fe), % 61.7 to 71
56 to 66
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 10.5 to 13.5
12 to 16
Niobium (Nb), % 0
0 to 1.1
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
Titanium (Ti), % 0 to 0.7
0