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EN 1.7706 Steel vs. EN 1.0487 Steel

Both EN 1.7706 steel and EN 1.0487 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.7706 steel and the bottom bar is EN 1.0487 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
27
Fatigue Strength, MPa 330
210
Impact Strength: V-Notched Charpy, J 30
71
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 690
440
Tensile Strength: Yield (Proof), MPa 500
280

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
49
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 3.7
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.5
Embodied Energy, MJ/kg 32
20
Embodied Water, L/kg 57
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 670
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
15
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 20
14

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0.15 to 0.2
0 to 0.16
Chromium (Cr), % 1.2 to 1.5
0 to 0.3
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 94.7 to 97.1
96.6 to 99.38
Manganese (Mn), % 0.5 to 0.9
0.6 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.080
Nickel (Ni), % 0 to 0.4
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0.2 to 0.3
0 to 0.050