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EN 1.7108 Steel vs. EN 1.3558 Steel

Both EN 1.7108 steel and EN 1.3558 steel are iron alloys. They have 77% of their average alloy composition in common. There are 25 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 1.7108 steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 510
230
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 670 to 2070
770

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Maximum Temperature: Mechanical, °C 410
490
Melting Completion (Liquidus), °C 1430
1810
Melting Onset (Solidus), °C 1390
1760
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 46
20
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
45
Density, g/cm3 7.7
9.3
Embodied Carbon, kg CO2/kg material 1.5
8.4
Embodied Energy, MJ/kg 20
130
Embodied Water, L/kg 47
90

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 24 to 75
23
Strength to Weight: Bending, points 22 to 47
20
Thermal Diffusivity, mm2/s 12
5.3
Thermal Shock Resistance, points 20 to 63
22

Alloy Composition

Carbon (C), % 0.57 to 0.65
0.7 to 0.8
Chromium (Cr), % 0.2 to 0.45
3.9 to 4.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 95.9 to 96.9
73.7 to 77.6
Manganese (Mn), % 0.7 to 1.0
0 to 0.4
Molybdenum (Mo), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 1.6 to 2.0
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0
1.0 to 1.3