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EN 1.6217 Steel vs. EN 1.1170 Steel

Both EN 1.6217 steel and EN 1.1170 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.6217 steel and the bottom bar is EN 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
16 to 17
Fatigue Strength, MPa 280
220 to 330
Impact Strength: V-Notched Charpy, J 67
28 to 35
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
390 to 450
Tensile Strength: Ultimate (UTS), MPa 550
640 to 730
Tensile Strength: Yield (Proof), MPa 390
330 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 50
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 21
19
Embodied Water, L/kg 49
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 410
290 to 670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
23 to 26
Strength to Weight: Bending, points 19
21 to 23
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 16
20 to 23

Alloy Composition

Aluminum (Al), % 0.020 to 0.050
0
Carbon (C), % 0 to 0.16
0.25 to 0.32
Chromium (Cr), % 0
0 to 0.4
Iron (Fe), % 96.6 to 99
96.7 to 98.5
Manganese (Mn), % 0.85 to 1.7
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0.15 to 0.85
0 to 0.4
Niobium (Nb), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0 to 0.050
0