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EN 1.7216 Steel vs. EN 1.7218 Steel

Both EN 1.7216 steel and EN 1.7218 steel are iron alloys. Their average alloy composition is basically identical. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7216 steel and the bottom bar is EN 1.7218 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 280
150 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 650 to 930
500 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 50
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 33
18 to 55
Strength to Weight: Bending, points 21 to 27
18 to 38
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 19 to 27
15 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.27 to 0.34
0.22 to 0.29
Chromium (Cr), % 0.8 to 1.2
0.9 to 1.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.2 to 98.4
96.2 to 98.1
Manganese (Mn), % 0.35 to 0.6
0.6 to 0.9
Molybdenum (Mo), % 0.15 to 0.3
0.15 to 0.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035

Comparable Variants