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EN 1.8516 Steel vs. EN 1.8527 Steel

Both EN 1.8516 steel and EN 1.8527 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 1.8516 steel and the bottom bar is EN 1.8527 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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