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EN 1.7715 Steel vs. EN 1.3558 Steel

Both EN 1.7715 steel and EN 1.3558 steel are iron alloys. They have 77% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.7715 steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
230
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 540
770

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 420
490
Melting Completion (Liquidus), °C 1470
1810
Melting Onset (Solidus), °C 1430
1760
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 40
20
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
45
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 2.2
8.4
Embodied Energy, MJ/kg 30
130
Embodied Water, L/kg 52
90

Common Calculations

PREN (Pitting Resistance) 2.4
35
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 11
5.3
Thermal Shock Resistance, points 16
22

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.1 to 0.15
0.7 to 0.8
Chromium (Cr), % 0.3 to 0.6
3.9 to 4.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 96.5 to 98.3
73.7 to 77.6
Manganese (Mn), % 0.4 to 0.7
0 to 0.4
Molybdenum (Mo), % 0.5 to 0.7
0 to 0.6
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 0.015
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0.22 to 0.28
1.0 to 1.3