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EN 1.8527 Steel vs. EN 1.7715 Steel

Both EN 1.8527 steel and EN 1.7715 steel are iron alloys. They have a very high 96% 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 1.7715 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
21
Fatigue Strength, MPa 520
240
Impact Strength: V-Notched Charpy, J 39
34
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 550
340
Tensile Strength: Ultimate (UTS), MPa 900
540
Tensile Strength: Yield (Proof), MPa 800
340

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 490
420
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
2.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.7
2.2
Embodied Energy, MJ/kg 23
30
Embodied Water, L/kg 66
52

Common Calculations

PREN (Pitting Resistance) 5.7
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
99
Resilience: Unit (Modulus of Resilience), kJ/m3 1670
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
19
Strength to Weight: Bending, points 26
19
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 26
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.040 to 0.12
0.1 to 0.15
Chromium (Cr), % 3.7 to 4.3
0.3 to 0.6
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 93.2 to 95.1
96.5 to 98.3
Manganese (Mn), % 0.85 to 1.2
0.4 to 0.7
Molybdenum (Mo), % 0.4 to 0.6
0.5 to 0.7
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.4
0.15 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.010
Vanadium (V), % 0
0.22 to 0.28