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EN 1.8550 Steel vs. EN 1.4710 Stainless Steel

Both EN 1.8550 steel and EN 1.4710 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.8550 steel and the bottom bar is EN 1.4710 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
20
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 440
750
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 40
24
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
6.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
7.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
5.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
1.8
Embodied Energy, MJ/kg 23
24
Embodied Water, L/kg 67
76

Common Calculations

PREN (Pitting Resistance) 2.3
7.2
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Thermal Diffusivity, mm2/s 11
6.5

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0.2 to 0.35
Chromium (Cr), % 1.5 to 1.8
6.0 to 8.0
Iron (Fe), % 94.4 to 96.3
87.4 to 92.3
Manganese (Mn), % 0.4 to 0.7
0.5 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.15
Nickel (Ni), % 0.85 to 1.2
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030