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EN 1.3558 Steel vs. EN 1.7707 Steel

Both EN 1.3558 steel and EN 1.7707 steel are iron alloys. They have 79% 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 1.3558 steel and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
300
Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 770
1010

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Maximum Temperature: Mechanical, °C 490
460
Melting Completion (Liquidus), °C 1810
1460
Melting Onset (Solidus), °C 1760
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 20
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 45
3.3
Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 8.4
1.9
Embodied Energy, MJ/kg 130
27
Embodied Water, L/kg 90
58

Common Calculations

PREN (Pitting Resistance) 35
3.2
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 23
36
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 5.3
11
Thermal Shock Resistance, points 22
29

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.26 to 0.34
Chromium (Cr), % 3.9 to 4.3
2.3 to 2.7
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 73.7 to 77.6
94.7 to 96.8
Manganese (Mn), % 0 to 0.4
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.6
0.15 to 0.25
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Tungsten (W), % 17.5 to 19
0
Vanadium (V), % 1.0 to 1.3
0.1 to 0.2