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EN 1.1170 Steel vs. EN 1.5637 Steel

Both EN 1.1170 steel and EN 1.5637 steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.1170 steel and the bottom bar is EN 1.5637 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 210
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
24
Fatigue Strength, MPa 220 to 330
280
Impact Strength: V-Notched Charpy, J 28 to 35
64
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390 to 450
360
Tensile Strength: Ultimate (UTS), MPa 640 to 730
560
Tensile Strength: Yield (Proof), MPa 330 to 500
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
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
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
4.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 19
24
Embodied Water, L/kg 49
52

Common Calculations

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

Alloy Composition

Carbon (C), % 0.25 to 0.32
0 to 0.15
Chromium (Cr), % 0 to 0.4
0
Iron (Fe), % 96.7 to 98.5
94.9 to 96.5
Manganese (Mn), % 1.3 to 1.7
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
3.3 to 3.8
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.0050
Vanadium (V), % 0
0 to 0.050