MakeItFrom.com
Menu (ESC)

EN 1.0644 Steel vs. EN 1.7707 Steel

Both EN 1.0644 steel and EN 1.7707 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 97% of their average alloy composition in common. There are 32 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 1.0644 steel and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
11
Fatigue Strength, MPa 380
500
Impact Strength: V-Notched Charpy, J 38
31
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 420
600
Tensile Strength: Ultimate (UTS), MPa 690
1010
Tensile Strength: Yield (Proof), MPa 570
800

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 47
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.9
Embodied Energy, MJ/kg 24
27
Embodied Water, L/kg 50
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 870
1690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
36
Strength to Weight: Bending, points 22
29
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 22
29

Alloy Composition

Aluminum (Al), % 0.010 to 0.050
0
Carbon (C), % 0.16 to 0.22
0.26 to 0.34
Chromium (Cr), % 0 to 0.3
2.3 to 2.7
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 96.1 to 98.4
94.7 to 96.8
Manganese (Mn), % 1.3 to 1.7
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.080
0.15 to 0.25
Nickel (Ni), % 0 to 0.4
0 to 0.6
Niobium (Nb), % 0 to 0.070
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.1 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.035
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0.080 to 0.15
0.1 to 0.2