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EN 1.1191 Steel vs. EN 1.8507 Steel

Both EN 1.1191 steel and EN 1.8507 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.1191 steel and the bottom bar is EN 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
16
Fatigue Strength, MPa 210 to 290
440
Impact Strength: V-Notched Charpy, J 16 to 29
40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 380 to 430
550
Tensile Strength: Ultimate (UTS), MPa 630 to 700
900
Tensile Strength: Yield (Proof), MPa 310 to 440
670

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
430
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 48
41
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 47
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
130
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
1210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
32
Strength to Weight: Bending, points 21 to 22
27
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 20 to 22
26

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.42 to 0.5
0.3 to 0.37
Chromium (Cr), % 0 to 0.4
1.0 to 1.3
Iron (Fe), % 97.3 to 99.08
96.1 to 97.7
Manganese (Mn), % 0.5 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.1
0.15 to 0.25
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