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EN 1.8507 Steel vs. EN 1.8825 Steel

Both EN 1.8507 steel and EN 1.8825 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 1.8507 steel and the bottom bar is EN 1.8825 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
22
Fatigue Strength, MPa 440
290
Impact Strength: V-Notched Charpy, J 40
58
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 550
360
Tensile Strength: Ultimate (UTS), MPa 900
570
Tensile Strength: Yield (Proof), MPa 670
420

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 41
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.7
Embodied Energy, MJ/kg 21
23
Embodied Water, L/kg 63
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1210
460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 27
19
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 26
17

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0.015 to 0.054
Carbon (C), % 0.3 to 0.37
0 to 0.18
Chromium (Cr), % 1.0 to 1.3
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 96.1 to 97.7
95.1 to 99.985
Manganese (Mn), % 0.4 to 0.7
0 to 1.8
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.23
Nickel (Ni), % 0
0 to 0.85
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.027
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.55
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.14