ABS FQ70 – Premium High-Strength Steel for Critical Structural Applications
Extra High Strength Steel
Properties
General
| Property | Value | Comment |
|---|---|---|
Carbon equivalent (CET) | 0.36 [-] | TM |
0.4 [-] | QT | |
Carbon equivalent (CEV) | 0.56 [-] | for t ≤ 50 mm plate thickness |
0.64 [-] | for t ≤ 50 mm plate thickness condition QT | |
0.66 [-] | for 50 < t ≤100 mm plate thickness condition QT | |
0.68 [-] | for t ≤ 65 mm tabulars condition QT | |
0.7 [-] | for 100 < t ≤ 250 mm plate thickness condition QT | |
Density | 7.8 - 7.9 g/cm³ | typical for low carbon steel |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Charpy impact energy, V-notch | -60 °C | 69 J | |
Charpy impact energy, V-notch, transverse | -60 °C | 46 J | |
Elastic modulus | 200 - 215 GPa | typical for low carbon steel | |
Elongation | 14 % | min. | |
Poisson's ratio | 0.29 [-] | typical for low carbon steel | |
Shear modulus | 82 GPa | typical for low carbon steel | |
Tensile strength | 770 - 940 MPa |
Thermal
| Property | Value | Comment |
|---|---|---|
Coefficient of thermal expansion | 1.32e-05 - 1.38e-05 1/K | typical for low carbon steel |
Max service temperature | 500 °C | typical for carbon steel |
Melting point | 1480 - 1526 °C | typical for low carbon steel |
Specific heat capacity | 465 J/(kg·K) | typical for low carbon steel |
Thermal conductivity | 25 - 93 W/(m·K) | typical for low carbon steel |
Electrical
| Property | Value | Comment |
|---|---|---|
Electrical resistivity | 1.43e-07 - 1.74e-07 Ω·m | typical for carbon steel |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Aluminium | 0.018 - 0.2 % | min., depending on the delivery condition |
Boron | 0.005 % | max. |
Calcium | 0.005 % | max. |
Carbon | 0.14 - 0.18 % | max., depending on the delivery condition |
Chromium | 0.3 - 2 % | max., depending on the delivery condition |
Copper | 0.5 - 0.55 % | max., depending on the delivery condition |
Manganese | 1 - 1.7 % | depending on the delivery condition |
Molybdenum | 0.1 - 0.7 % | max., depending on the delivery condition |
Nickel | 0.8 - 3.5 % | max., depending on the delivery condition |
Niobium | 0.05 - 0.06 % | max., depending on the delivery condition |
Nitrogen | 0.015 - 0.025 % | max., depending on the delivery condition |
Oxygen | 0.003 - 0.005 % | max., depending on the delivery condition |
Phosphorus | 0.02 % | max., depending on the delivery condition |
Silicon | 0.6 - 0.8 % | max., depending on the delivery condition |
Sulfur | 0.01 % | max., depending on the delivery condition |
Titanium | 0.05 % | max. |
Vanadium | 0.12 - 0.2 % | max., depending on the delivery condition |
Technological properties
| Property | ||
|---|---|---|
| Supplier Disclaimer | The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information. | |
Metal
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