CSA 700QT Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Canada / CSA

Data updates

Latest Update: 2024-06

Total number of updates: 2

Update History

2017-10

This material has 27 properties — only a subset is shown here.

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CSA 700QT Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≥ 0.015

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.0005 – 0.005

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

≤ 0.20

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-50-8

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

G40.21: 2013 / Structural quality steel

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CSA 700QT Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Density

7.67 — 7.86 kg/dm³

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Poisson Coefficient

0.27 — 0.3

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This material has 27 properties — only a subset is shown here.

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CSA 700QT Heat Treatments

Normalizing - a process that involves re-heating as-rolled steel plate to a temperature above the upper transformation temperature (approximately 830 to 900° (1525 to 1650°F), and cooling it in still air. Normalized steels are denoted “N” and are applicable to steel plate.
Quenching and tempering: steel shall be heat treated by quenching and tempering to conform to the mechanical properties required by. Quenching shall be accomplished by uniformly heating the steel to not less than 900°C (1650°F) and then cooling it by liquid immersion or liquid sprays to a temperature less than 320°C (600°F). The steel shall be tempered by uniformly reheating it to a suitable temperature not less than 595°C (1100°F), or as stipulated on the product specification, and then cooled in air or quenched. The heat-treating temperature shall be reported on the test certificates, if required.

CSA 700QT Mechanical Properties

Temperature

≤ 0°C 0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

620 MPa

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Tensile Strength

760 — 895 MPa

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Elongation, A

18 %

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Impact Energy

val1 J

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5 Cross References

8 Composition
10 Mechanical Properties
3 Physical Properties
1 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
- Fatigue
- Fracture
- Creep

- Joints
- Coatings
- Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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