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EN 1.3555 Steel vs. S21904 Stainless Steel

Both EN 1.3555 steel and S21904 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 24 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 1.3555 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 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 770
700 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 540
980
Melting Completion (Liquidus), °C 1500
1400
Melting Onset (Solidus), °C 1450
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.6
3.0
Embodied Energy, MJ/kg 81
43
Embodied Water, L/kg 90
160

Common Calculations

PREN (Pitting Resistance) 18
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27
25 to 36
Strength to Weight: Bending, points 23
23 to 29
Thermal Shock Resistance, points 22
15 to 21

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.040
Chromium (Cr), % 3.9 to 4.3
19 to 21.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 85.4 to 87.7
59.5 to 67.4
Manganese (Mn), % 0.15 to 0.35
8.0 to 10
Molybdenum (Mo), % 4.0 to 4.5
0
Nickel (Ni), % 3.2 to 3.6
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0.1 to 0.25
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 1.0 to 1.3
0