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EN 1.7321 Steel vs. EN 1.7016 Steel

Both EN 1.7321 steel and EN 1.7016 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.7321 steel and the bottom bar is EN 1.7016 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 170
130 to 170
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 490 to 1460
450 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 45
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 50
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 52
16 to 49
Strength to Weight: Bending, points 18 to 36
17 to 35
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 14 to 43
13 to 41

Alloy Composition

Carbon (C), % 0.17 to 0.23
0.14 to 0.2
Chromium (Cr), % 0.3 to 0.6
0.7 to 1.0
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 97.1 to 98.4
97.3 to 98.6
Manganese (Mn), % 0.7 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.4 to 0.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants