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EN 1.5805 Steel vs. EN 1.7102 Steel

Both EN 1.5805 steel and EN 1.7102 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 1.5805 steel and the bottom bar is EN 1.7102 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
200 to 480
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 460 to 1180
670 to 2010

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 53
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 42
24 to 72
Strength to Weight: Bending, points 17 to 32
22 to 46
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 13 to 35
20 to 60

Alloy Composition

Carbon (C), % 0.070 to 0.12
0.51 to 0.59
Chromium (Cr), % 0.9 to 1.2
0.5 to 0.8
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 95.7 to 97.2
96.2 to 97.3
Manganese (Mn), % 0.6 to 0.9
0.5 to 0.8
Nickel (Ni), % 1.2 to 1.5
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
1.2 to 1.6
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants