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EN 1.7386 Steel vs. EN 1.7715 Steel

Both EN 1.7386 steel and EN 1.7715 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7386 steel and the bottom bar is EN 1.7715 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
21
Fatigue Strength, MPa 170 to 290
240
Impact Strength: V-Notched Charpy, J 38
34
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 340 to 410
340
Tensile Strength: Ultimate (UTS), MPa 550 to 670
540
Tensile Strength: Yield (Proof), MPa 240 to 440
340

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
420
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
2.9
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 88
52

Common Calculations

PREN (Pitting Resistance) 12
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
99
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20 to 24
19
Strength to Weight: Bending, points 19 to 22
19
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 15 to 18
16

Alloy Composition

Aluminum (Al), % 0 to 0.040
0 to 0.040
Carbon (C), % 0.080 to 0.15
0.1 to 0.15
Chromium (Cr), % 8.0 to 10
0.3 to 0.6
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 86.8 to 90.5
96.5 to 98.3
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0.5 to 0.7
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.25 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.010
Vanadium (V), % 0
0.22 to 0.28