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EN 1.7715 Steel vs. EN 1.8873 Steel

Both EN 1.7715 steel and EN 1.8873 steel are iron alloys. They have a very high 99% of their average alloy composition in common. 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 1.7715 steel and the bottom bar is EN 1.8873 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 240
340
Impact Strength: V-Notched Charpy, J 34
67
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
410
Tensile Strength: Ultimate (UTS), MPa 540
660
Tensile Strength: Yield (Proof), MPa 340
490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
3.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.2
1.8
Embodied Energy, MJ/kg 30
24
Embodied Water, L/kg 52
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
110
Resilience: Unit (Modulus of Resilience), kJ/m3 320
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.1 to 0.15
0 to 0.18
Chromium (Cr), % 0.3 to 0.6
0 to 1.0
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.5 to 98.3
93.6 to 100
Manganese (Mn), % 0.4 to 0.7
0 to 1.7
Molybdenum (Mo), % 0.5 to 0.7
0 to 0.7
Nickel (Ni), % 0 to 0.3
0 to 1.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0.22 to 0.28
0 to 0.080
Zirconium (Zr), % 0
0 to 0.15