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EN 1.4618 Stainless Steel vs. EN 1.6571 Steel

Both EN 1.4618 stainless steel and EN 1.6571 steel are iron alloys. They have 71% of their average alloy composition in common. There are 25 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 1.4618 stainless steel and the bottom bar is EN 1.6571 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
160 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 680 to 700
520 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 900
420
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
3.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.7
Embodied Energy, MJ/kg 39
22
Embodied Water, L/kg 150
53

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 25
19 to 51
Strength to Weight: Bending, points 22 to 23
18 to 36
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 15 to 16
15 to 43

Alloy Composition

Carbon (C), % 0 to 0.1
0.16 to 0.23
Chromium (Cr), % 16.5 to 18.5
0.6 to 0.9
Copper (Cu), % 1.0 to 2.5
0 to 0.25
Iron (Fe), % 62.7 to 72.5
95.3 to 97.1
Manganese (Mn), % 5.5 to 9.5
0.5 to 0.9
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 4.5 to 5.5
1.4 to 1.7
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.010
0.020 to 0.040