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EN 1.8522 Steel vs. EN 1.4578 Stainless Steel

Both EN 1.8522 steel and EN 1.4578 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.8522 steel and the bottom bar is EN 1.4578 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 380
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 730 to 1250
550

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 470
930
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 4.2
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.7
Embodied Energy, MJ/kg 31
51
Embodied Water, L/kg 63
160

Common Calculations

PREN (Pitting Resistance) 6.2
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 44
19
Strength to Weight: Bending, points 23 to 33
19
Thermal Diffusivity, mm2/s 11
3.9
Thermal Shock Resistance, points 21 to 36
12

Alloy Composition

Carbon (C), % 0.29 to 0.36
0 to 0.040
Chromium (Cr), % 2.8 to 3.3
16.5 to 17.5
Copper (Cu), % 0 to 0.1
3.0 to 3.5
Iron (Fe), % 93.7 to 96
62.3 to 68.5
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.7 to 1.2
2.0 to 2.5
Nickel (Ni), % 0 to 0.3
10 to 11
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015
Vanadium (V), % 0.15 to 0.25
0