MakeItFrom.com
Menu (ESC)

EN 1.7715 Steel vs. EN 1.8505 Steel

Both EN 1.7715 steel and EN 1.8505 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7715 steel and the bottom bar is EN 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
13
Fatigue Strength, MPa 240
540
Impact Strength: V-Notched Charpy, J 34
28
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
630
Tensile Strength: Ultimate (UTS), MPa 540
1050
Tensile Strength: Yield (Proof), MPa 340
860

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
2.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.6
Embodied Energy, MJ/kg 30
22
Embodied Water, L/kg 52
65

Common Calculations

PREN (Pitting Resistance) 2.4
2.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
120
Resilience: Unit (Modulus of Resilience), kJ/m3 320
1950
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
37
Strength to Weight: Bending, points 19
30
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 16
31

Alloy Composition

Aluminum (Al), % 0 to 0.040
0.8 to 1.2
Carbon (C), % 0.1 to 0.15
0.28 to 0.35
Chromium (Cr), % 0.3 to 0.6
1.5 to 1.8
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.5 to 98.3
95.4 to 97.1
Manganese (Mn), % 0.4 to 0.7
0.4 to 0.7
Molybdenum (Mo), % 0.5 to 0.7
0.2 to 0.4
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Vanadium (V), % 0.22 to 0.28
0