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EN 1.7707 Steel vs. EN 1.0625 Steel

Both EN 1.7707 steel and EN 1.0625 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7707 steel and the bottom bar is EN 1.0625 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
25
Fatigue Strength, MPa 500
230
Impact Strength: V-Notched Charpy, J 31
30 to 45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 1010
560
Tensile Strength: Yield (Proof), MPa 800
320

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 460
400
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 39
47
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.5
Embodied Energy, MJ/kg 27
20
Embodied Water, L/kg 58
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1690
270
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 29
19
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 29
18

Alloy Composition

Carbon (C), % 0.26 to 0.34
0.18 to 0.25
Chromium (Cr), % 2.3 to 2.7
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 94.7 to 96.8
96.6 to 99.02
Manganese (Mn), % 0.4 to 0.7
0.8 to 1.4
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.12
Nickel (Ni), % 0 to 0.6
0 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.035
0 to 0.020
Vanadium (V), % 0.1 to 0.2
0 to 0.030