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EN 1.3558 Steel vs. AISI 309Cb Stainless Steel

Both EN 1.3558 steel and AISI 309Cb stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 770
580

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 490
1090
Melting Completion (Liquidus), °C 1810
1420
Melting Onset (Solidus), °C 1760
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 45
23
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.4
4.1
Embodied Energy, MJ/kg 130
59
Embodied Water, L/kg 90
170

Common Calculations

PREN (Pitting Resistance) 35
23
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23
20
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 5.3
4.0
Thermal Shock Resistance, points 22
13

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.080
Chromium (Cr), % 3.9 to 4.3
22 to 24
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
56 to 66
Manganese (Mn), % 0 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
12 to 16
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0