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EN 1.1170 Steel vs. EN 1.7711 Steel

Both EN 1.1170 steel and EN 1.7711 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
16 to 22
Fatigue Strength, MPa 220 to 330
290 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 450
440 to 570
Tensile Strength: Ultimate (UTS), MPa 640 to 730
690 to 930
Tensile Strength: Yield (Proof), MPa 330 to 500
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
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
33
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
2.3
Embodied Energy, MJ/kg 19
32
Embodied Water, L/kg 49
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 100
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 670
430 to 1690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 26
24 to 33
Strength to Weight: Bending, points 21 to 23
22 to 27
Thermal Diffusivity, mm2/s 13
8.9
Thermal Shock Resistance, points 20 to 23
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0.25 to 0.32
0.36 to 0.44
Chromium (Cr), % 0 to 0.4
0.9 to 1.2
Iron (Fe), % 96.7 to 98.5
96 to 97.5
Manganese (Mn), % 1.3 to 1.7
0.45 to 0.85
Molybdenum (Mo), % 0 to 0.1
0.5 to 0.65
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 0.030
Vanadium (V), % 0
0.25 to 0.35

Comparable Variants