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EN 1.5662 Steel vs. EN 1.7703 Steel

Both EN 1.5662 steel and EN 1.7703 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.5662 steel and the bottom bar is EN 1.7703 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
20
Fatigue Strength, MPa 380 to 450
320 to 340
Impact Strength: V-Notched Charpy, J 91 to 130
46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 460 to 470
420 to 430
Tensile Strength: Ultimate (UTS), MPa 740 to 750
670 to 690
Tensile Strength: Yield (Proof), MPa 550 to 660
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
4.2
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.3
2.5
Embodied Energy, MJ/kg 31
35
Embodied Water, L/kg 63
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1150
570 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
22
Thermal Shock Resistance, points 22
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.1
0.11 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 88.6 to 91.2
94.6 to 96.4
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.9 to 1.1
Nickel (Ni), % 8.5 to 10
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.020
0 to 0.015
Silicon (Si), % 0 to 0.35
0 to 0.1
Sulfur (S), % 0 to 0.0050
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0 to 0.050
0.25 to 0.35

Comparable Variants