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EN 1.3558 Steel vs. S21904 Stainless Steel

Both EN 1.3558 steel and S21904 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3558 steel and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
210 to 300
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
700 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 490
980
Melting Completion (Liquidus), °C 1810
1400
Melting Onset (Solidus), °C 1760
1350
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 20
14
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 45
15
Density, g/cm3 9.3
7.7
Embodied Carbon, kg CO2/kg material 8.4
3.0
Embodied Energy, MJ/kg 130
43
Embodied Water, L/kg 90
160

Common Calculations

PREN (Pitting Resistance) 35
25
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 23
25 to 36
Strength to Weight: Bending, points 20
23 to 29
Thermal Diffusivity, mm2/s 5.3
3.8
Thermal Shock Resistance, points 22
15 to 21

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.040
Chromium (Cr), % 3.9 to 4.3
19 to 21.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
59.5 to 67.4
Manganese (Mn), % 0 to 0.4
8.0 to 10
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
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