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EN 1.6368 Steel vs. EN 1.8507 Steel

Both EN 1.6368 steel and EN 1.8507 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 1.6368 steel and the bottom bar is EN 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
270
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
16
Fatigue Strength, MPa 310 to 330
440
Impact Strength: V-Notched Charpy, J 43 to 46
40
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 410 to 430
550
Tensile Strength: Ultimate (UTS), MPa 660 to 690
900
Tensile Strength: Yield (Proof), MPa 460 to 490
670

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 40
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
2.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.6
Embodied Energy, MJ/kg 22
21
Embodied Water, L/kg 53
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
1210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 24
32
Strength to Weight: Bending, points 21 to 22
27
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 20
26

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0.8 to 1.2
Carbon (C), % 0 to 0.17
0.3 to 0.37
Chromium (Cr), % 0 to 0.3
1.0 to 1.3
Copper (Cu), % 0.5 to 0.8
0
Iron (Fe), % 95.1 to 97.2
96.1 to 97.7
Manganese (Mn), % 0.8 to 1.2
0.4 to 0.7
Molybdenum (Mo), % 0.25 to 0.5
0.15 to 0.25
Nickel (Ni), % 1.0 to 1.3
0
Niobium (Nb), % 0.015 to 0.045
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.25 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035