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EN 1.5507 Steel vs. EN 1.7707 Steel

Both EN 1.5507 steel and EN 1.7707 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 1.5507 steel and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 260
300
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 450 to 880
1010

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
460
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 49
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 19
27
Embodied Water, L/kg 49
58

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 31
36
Strength to Weight: Bending, points 17 to 26
29
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 13 to 26
29

Alloy Composition

Aluminum (Al), % 0.020 to 0.080
0
Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.21 to 0.25
0.26 to 0.34
Chromium (Cr), % 0.25 to 0.35
2.3 to 2.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.8 to 98.7
94.7 to 96.8
Manganese (Mn), % 0.8 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.015
0 to 0.035
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0
0.1 to 0.2