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EN 1.8527 Steel vs. EN 1.8516 Steel

Both EN 1.8527 steel and EN 1.8516 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8527 steel and the bottom bar is EN 1.8516 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
330
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
11
Fatigue Strength, MPa 520
570
Impact Strength: V-Notched Charpy, J 39
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 550
660
Tensile Strength: Ultimate (UTS), MPa 900
1100
Tensile Strength: Yield (Proof), MPa 800
910

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Maximum Temperature: Mechanical, °C 490
470
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 41
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
3.7
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.7
Embodied Energy, MJ/kg 23
22
Embodied Water, L/kg 66
61

Common Calculations

PREN (Pitting Resistance) 5.7
5.2
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1670
2190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
39
Strength to Weight: Bending, points 26
30
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 26
32

Alloy Composition

Carbon (C), % 0.040 to 0.12
0.2 to 0.27
Chromium (Cr), % 3.7 to 4.3
3.0 to 3.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.2 to 95.1
94.6 to 96.1
Manganese (Mn), % 0.85 to 1.2
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 0.6
0.5 to 0.7
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