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EN 1.7767 Steel vs. EN 1.3558 Steel

Both EN 1.7767 steel and EN 1.3558 steel are iron alloys. They have 80% 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 1.7767 steel and the bottom bar is EN 1.3558 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
230
Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 670 to 690
770

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Maximum Temperature: Mechanical, °C 480
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 7.7
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
12

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
45
Density, g/cm3 7.9
9.3
Embodied Carbon, kg CO2/kg material 2.4
8.4
Embodied Energy, MJ/kg 33
130
Embodied Water, L/kg 64
90

Common Calculations

PREN (Pitting Resistance) 6.4
35
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 24
23
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 11
5.3
Thermal Shock Resistance, points 19 to 20
22

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.7 to 0.8
Chromium (Cr), % 2.8 to 3.3
3.9 to 4.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 93.8 to 95.8
73.7 to 77.6
Manganese (Mn), % 0.3 to 0.6
0 to 0.4
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.6
Nickel (Ni), % 0 to 0.25
0
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0 to 0.0050
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Tungsten (W), % 0
17.5 to 19
Vanadium (V), % 0.2 to 0.3
1.0 to 1.3