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EN 1.6582 Steel vs. S21904 Stainless Steel

Both EN 1.6582 steel and S21904 stainless steel are iron alloys. They have 67% 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 1.6582 steel and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 300
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 620 to 1750
700 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
980
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
14
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 22
43
Embodied Water, L/kg 56
160

Common Calculations

PREN (Pitting Resistance) 2.2
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 62
25 to 36
Strength to Weight: Bending, points 21 to 41
23 to 29
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 18 to 51
15 to 21

Alloy Composition

Carbon (C), % 0.3 to 0.38
0 to 0.040
Chromium (Cr), % 1.3 to 1.7
19 to 21.5
Iron (Fe), % 94.7 to 96.5
59.5 to 67.4
Manganese (Mn), % 0.5 to 0.8
8.0 to 10
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 1.3 to 1.7
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030

Comparable Variants