DNVGL Grade VL O690 D +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

PropertyValueComment

Carbon equivalent (CET)

0.4 [-]

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Carbon equivalent (CEV)

0.64 [-]

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for t ≤ 50 mm plate thickness

0.66 [-]

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for 50 < t ≤100 mm plate thickness

0.68 [-]

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t ≤ 65 mm tabulars

0.7 [-]

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for 100 < t ≤ 250 mm plate thickness

Density

7.8 - 7.9 g/cm³

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typical for low carbon steel

Mechanical

PropertyTemperatureValueComment

Charpy impact energy, V-notch

-20 °C

62 J

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min.

Charpy impact energy, V-notch, transverse

-20 °C

46 J

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min.

Elastic modulus

200.0 - 215.0 GPa

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typical for low carbon steel

Elongation

14.0 %

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min., Transverse

16.0 %

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min.

Poisson's ratio

0.29 [-]

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typical for low carbon steel

Shear modulus

82.0 GPa

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typical for low carbon steel

Tensile strength

770.0 - 940.0 MPa

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Thermal

PropertyValueComment

Coefficient of thermal expansion

1.3199999999999999e-05 - 1.38e-05 1/K

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typical for low carbon steel

Max service temperature

500.0 °C

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typical for carbon steel

Melting point

1480.0 - 1526.0 °C

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typical for low carbon steel

Specific heat capacity

465.0 J/(kg·K)

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typical for low carbon steel

Thermal conductivity

25.0 - 93.0 W/(m·K)

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typical for low carbon steel

Electrical

PropertyValueComment

Electrical resistivity

1.43e-07 - 1.7400000000000002e-07 Ω·m

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typical for carbon steel

Chemical properties

PropertyValueComment

Aluminium

0.018000000000000002 %

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min.

Carbon

0.18

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Chromium

1.5

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Copper

0.5

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Manganese

1.7000000000000002

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Molybdenum

0.7000000000000001

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Nickel

2.0

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

Niobium

0.06

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Nitrogen

0.015 %

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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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can be 0.005% higher than the specified value

Silicon

0.8

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Sulfur

0.015

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can be 0.005% higher than the specified value

Titanium

0.05

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Vanadium

0.12 %

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