ABS Grade FQ70

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Description

Extra High Strength Steel

Related Standards

This material data has been provided by ABS Standard.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueComment

Carbon equivalent (CET)

0.36 [-]

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TM

0.4 [-]

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QT

Carbon equivalent (CEV)

0.56 [-]

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for t ≤ 50 mm plate thickness

0.64 [-]

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for t ≤ 50 mm plate thickness condition QT

0.66 [-]

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for 50 < t ≤100 mm plate thickness condition QT

0.68 [-]

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for t ≤ 65 mm tabulars condition QT

0.7 [-]

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for 100 < t ≤ 250 mm plate thickness condition QT

Density

7.8 - 7.9 g/cm³

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typical for low carbon steel

Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

-60 °C

69 J

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Charpy impact energy, V-notch, transverse

-60 °C

46 J

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Elastic modulus

200 - 215 GPa

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typical for low carbon steel

Elongation

14 %

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min.

Poisson's ratio

0.29 [-]

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typical for low carbon steel

Shear modulus

82 GPa

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typical for low carbon steel

Tensile strength

770 - 940 MPa

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Thermal

PropertyValueComment

Coefficient of thermal expansion

1.32e-05 - 1.38e-05 1/K

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typical for low carbon steel

Max service temperature

500 °C

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typical for carbon steel

Melting point

1480 - 1526 °C

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typical for low carbon steel

Specific heat capacity

465 J/(kg·K)

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typical for low carbon steel

Thermal conductivity

25 - 93 W/(m·K)

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typical for low carbon steel

Electrical

PropertyValueComment

Electrical resistivity

1.43e-07 - 1.74e-07 Ω·m

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typical for carbon steel

Chemical properties

PropertyValueComment

Aluminium

0.018 - 0.2 %

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min., depending on the delivery condition

Boron

0.005 %

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max.

Calcium

0.005 %

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max.

Carbon

0.14 - 0.18 %

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max., depending on the delivery condition

Chromium

0.3 - 2 %

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max., depending on the delivery condition

Copper

0.5 - 0.55 %

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max., depending on the delivery condition

Manganese

1 - 1.7 %

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depending on the delivery condition

Molybdenum

0.1 - 0.7 %

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max., depending on the delivery condition

Nickel

0.8 - 3.5 %

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max., depending on the delivery condition

Niobium

0.05 - 0.06 %

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max., depending on the delivery condition

Nitrogen

0.015 - 0.025 %

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max., depending on the delivery condition

Oxygen

0.003 - 0.005 %

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max., depending on the delivery condition

Phosphorus

0.02 %

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max., depending on the delivery condition

Silicon

0.6 - 0.8 %

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max., depending on the delivery condition

Sulfur

0.01 %

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max., depending on the delivery condition

Titanium

0.05 %

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max.

Vanadium

0.12 - 0.2 %

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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.

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