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EN 1.8507 Steel vs. EN 1.8503 Steel

Both EN 1.8507 steel and EN 1.8503 steel are iron alloys. Both are furnished in the quenched and tempered condition. Their average alloy composition is basically identical. 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 1.8507 steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
16
Fatigue Strength, MPa 440
600
Impact Strength: V-Notched Charpy, J 40
39
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 550
610
Tensile Strength: Ultimate (UTS), MPa 900
1000
Tensile Strength: Yield (Proof), MPa 670
910

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.3
Embodied Energy, MJ/kg 21
33
Embodied Water, L/kg 63
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1210
2200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
35
Strength to Weight: Bending, points 27
28
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 26
29

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0 to 0.3
Carbon (C), % 0.3 to 0.37
0.16 to 0.24
Chromium (Cr), % 1.0 to 1.3
1.2 to 1.5
Iron (Fe), % 96.1 to 97.7
95.8 to 97.5
Manganese (Mn), % 0.4 to 0.7
0.4 to 0.8
Molybdenum (Mo), % 0.15 to 0.25
0.65 to 0.8
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035
Vanadium (V), % 0
0.25 to 0.35