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EN 1.1170 Steel vs. EN 1.8505 Steel

Both EN 1.1170 steel and EN 1.8505 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.1170 steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
13
Fatigue Strength, MPa 220 to 330
540
Impact Strength: V-Notched Charpy, J 28 to 35
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 450
630
Tensile Strength: Ultimate (UTS), MPa 640 to 730
1050
Tensile Strength: Yield (Proof), MPa 330 to 500
860

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 49
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 670
1950
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 26
37
Strength to Weight: Bending, points 21 to 23
30
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 20 to 23
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.25 to 0.32
0.28 to 0.35
Chromium (Cr), % 0 to 0.4
1.5 to 1.8
Iron (Fe), % 96.7 to 98.5
95.4 to 97.1
Manganese (Mn), % 1.3 to 1.7
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.1
0.2 to 0.4
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035