DNVGL Grade VL 690 A +QT

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Description

Extra High Strength Steel

Related Standards

This material data has been provided by DNVGL Standard.

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

PropertyValueConditionComment

Carbon equivalent (CET)

0.4 [-]

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Quenched and Tempered

Carbon equivalent (CEV)

0.64 [-]

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Quenched and Tempered

for t ≤ 50 mm plate thickness

0.66 [-]

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Quenched and Tempered

for 50 < t ≤100 mm plate thickness

0.68 [-]

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Quenched and Tempered

t ≤ 65 mm tabulars

0.7 [-]

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Quenched and Tempered

for 100 < t ≤ 250 mm plate thickness

Density

7.8 - 7.9 g/cm³

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Quenched and Tempered

typical for low carbon steel

Mechanical

PropertyTemperatureValueConditionComment

Charpy impact energy, V-notch

0.0 °C

62.0 J

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Quenched and Tempered

min.

Charpy impact energy, V-notch, transverse

0.0 °C

46.0 J

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Quenched and Tempered

min.

Elastic modulus

200 - 215 GPa

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Quenched and Tempered

typical for low carbon steel

Elongation

14 %

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Quenched and Tempered

min., Transverse

16 %

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Quenched and Tempered

min.

Poisson's ratio

0.29 [-]

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Quenched and Tempered

typical for low carbon steel

Shear modulus

82 GPa

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Quenched and Tempered

typical for low carbon steel

Tensile strength

770 - 940 MPa

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Quenched and Tempered

Thermal

PropertyValueConditionComment

Coefficient of thermal expansion

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

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Quenched and Tempered

typical for low carbon steel

Max service temperature

500 °C

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Quenched and Tempered

typical for carbon steel

Melting point

1480 - 1526 °C

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Quenched and Tempered

typical for low carbon steel

Specific heat capacity

465 J/(kg·K)

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Quenched and Tempered

typical for low carbon steel

Thermal conductivity

25 - 93 W/(m·K)

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Quenched and Tempered

typical for low carbon steel

Electrical

PropertyValueConditionComment

Electrical resistivity

1.43e-07 - 1.74e-07 Ω·m

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Quenched and Tempered

typical for carbon steel

Chemical properties

PropertyValueConditionComment

Aluminium

0.018 %

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Quenched and Tempered

min.

Carbon

0.18 %

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Quenched and Tempered

Chromium

1.5 %

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Quenched and Tempered

Copper

0.5 %

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Quenched and Tempered

Manganese

1.7 %

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Quenched and Tempered

Molybdenum

0.7 %

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Quenched and Tempered

Nickel

2 %

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Quenched and Tempered

higher Ni content may be qualified and accepted subject to qualification during manufacturer qualification testing

Niobium

0.06 %

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Quenched and Tempered

Nitrogen

0.015 %

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Quenched and Tempered

the total aluminium to nitrogen ratio shall be a minimum of 2:1. When other nitrogen binding elements are used, the minimum Al value and Al/N ratio do not apply

Phosphorus

0.025 %

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Quenched and Tempered

can be 0.005% higher than the specified value

Silicon

0.8 %

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Quenched and Tempered

Sulfur

0.015 %

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Quenched and Tempered

can be 0.005% higher than the specified value

Titanium

0.05 %

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Quenched and Tempered

Vanadium

0.12 %

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Quenched and Tempered

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.