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EN 1.5805 Steel vs. EN 1.6958 Steel

Both EN 1.5805 steel and EN 1.6958 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.5805 steel and the bottom bar is EN 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 170
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 460 to 1180
1140

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
450
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
47
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.1
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.0
Embodied Energy, MJ/kg 21
27
Embodied Water, L/kg 53
60

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 42
40
Strength to Weight: Bending, points 17 to 32
31
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 13 to 35
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0.070 to 0.12
0.25 to 0.3
Chromium (Cr), % 0.9 to 1.2
1.2 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 95.7 to 97.2
92.6 to 94.5
Manganese (Mn), % 0.6 to 0.9
0.2 to 0.5
Molybdenum (Mo), % 0
0.35 to 0.55
Nickel (Ni), % 1.2 to 1.5
3.3 to 3.8
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.3
0.15 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.015
Vanadium (V), % 0
0 to 0.12