Carbon Steel Plate Material

S690QL – High Yield Steel

S690QL – High Yield Steel

 

 

1.High Yield Steel

EN 10025 PT6:2004

S690QL | S890QL | S960QL | S1100QL

 

 

2.S690 QL is a high yield structural steel grade produced in compliance with EN 10025:6:2004. The material is heat treated using the quench and temper process and has good bending and welding properties.

Due to the materials high strength nature, using S690QL will promote leaner designed structures with increased payload capacity and energy efficiency.

Please refer to the technical details below referring to S690QL.

 

3.Grade Designation

S = Structural Steel

690 = minimum yield strength (MPa)

Q = Quenching & Tempering

L = Low notch toughness testing temperature

 

4.Chemical Composition

Grade

C

Si

Mn

P

S

N

B

Cr

Cu

Mo

Nb*

Ni

Ti*

V*

Zr*

S690QL

0.20

0.80

1.70

0.025

0.015

0.015

0.0050

1.50

0.50

0.70

0.06

2.0

0.05

0.12

0.15

* At least 0.015% of grain-refining element present. Aluminium is also one of these elements. 

 

5.Mechanical Properties

 

Designation

Mechanical Properties (ambient temperature)

Steel Name

Steel Number

Min. Yield Strength Reh MPa

Tensile Strength Rm MPa

Min. % elongation after fracture

Nominal thickness (mm)

Nominal thickness (mm)

≥3 ≤50

≥50 ≤100

≥100 ≤150

≥3 ≤50

≥50 ≤100

≥100 ≤150

S690QL

1.8931

690

650

630

770/940

760/930

710/900

14

 

 

6.V Notch Impact Testing

Grade

Sample Orientation

@ 0°C

@-20°C

@-40°C

@-60°C

S690QL

Longitudinal

50 J

40 J

30 J

––

Traverse

35 J

30 J

27 J

––

 

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

The steel is used in a variety of sectors including...

Heavy transportation

Machine building

Steel constructions

Lifting equipment

 

7.For more information about S690QL high yield steel or to receive a competitive quotation, please contact us.

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