High strength steel plate S690QL1,Q690E

S690QL1 is a quenched and tempered steel under the European standard (EN 10025-6), while Q690E is a comparable grade under the Chinese standard (GB/T 16270). The key difference is that S690QL1 is specified for a minimum impact energy of 30J at -60°C, whereas Q690E is typically specified for a minimum impact energy of 30J at -40°C. Both are ultra-high yield strength steels with a minimum yield strength of 690 MPa, achieved through quenching and tempering, and are used in applications like offshore platforms and large construction equipment.

Chemical composition % of steel S690QL1 (1.8988): EN 10025-6-2004

Mechanical properties of steel S690QL1 (1.8988)

Equivalent grades of steel S690QL1 (1.8988)

Warning! Only for reference

Mechanical Properties 

Chemical Composition 

S690QL1: Achieves high impact energy at -60℃ through Ni element toughening (Ni refines grains and reduces the ductile-brittle transition temperature) and synergistic effects of composite alloys, resulting in higher costs;

Q690E: Achieves performance balance in -40℃ environments through low carbon + low phosphorus + basic microalloying, featuring mature production processes and greater cost advantages.

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High strength steel plate S690QL,Q690E,S690Q and S690QL1 are all equivalent steel grades which requires impacting test temperature at -40 Degree centigrade with minimum values of impact energy at 30 J on longitudinal V-notch test pieces.Heat treatment shall be done with Quenching and Tempering for steel plate Q690E,steel plate S690QL,steel plate S690Q and steel plate S690QL1.

Steel plate Q690E comes from chinese steel specification GB/T 16270-2009 High strength structural steel plates in the quenched and tempered condition.According the different tensile strength and impacting test temperature,there are steel grades Q460C steel plate,Q460D steel plate,Q460E steel plate,Q460F steel plate,Q500C steel plate,Q500D steel plate,Q500E steel plate,Q500F steel plate,Q550C steel plate,Q550D steel plate,Q550E steel plate,Q550F steel plate,Q620C steel plate,Q620D steel plate,Q620E steel plate,Q620F steel plate,Q690C steel plate,Q690D steel plate,Q690E steel plate,Q690F steel plate,Q800C steel plate,Q800D steel plate,Q800E steel plate,Q800F steel plate,Q890C steel plate,Q890D steel plate,Q890E steel plate,Q890F steel plate,Q960C steel plate,Q960D steel plate,Q960E steel plate,Q960F steel plate.

Steel plate S690QL is produced comply to EN standard EN 10025-6 specification,Hot rolled high yield strength structural steels in the quenched and tempered condition.Other relative steel grades including S460Q steel plate,s460QL steel plate,S460QL1 steel plate,S500Q steel plate,s500QL steel plate,S500QL1 steel plate,S550Q steel plate,s550QL steel plate,S550QL1 steel plate,S620Q steel plate,s620QL steel plate,S620QL1 steel plate,S690Q steel plate,s690QL steel plate,S690QL1 steel plate,S890Q steel plate,s890QL steel plate,S890QL1 steel plate,S960Q steel plate,s960QL steel plate.

S690Q and S690QL1 is higher tensile strength steel plate produced by SSAB,plate thickness range from 4-160mm (0.157'' to 6.299'') tyoical application include demanding load-bearing structures.Other relative steel grades includes S690QL1 steel sheet,STRENX 700MC E steel sheet,S690QL1 steel plate,S690QL1 steel sheet,S690QL1 OME steel plate,S690QL1 steel plate,S690QL steel sheet,coil and slit coil.

What is the hardness of S690 QL steel?

S690QL steel stockholders and suppliers. S690QL is a quenched and tempered high strength steel supplied in full plates or cut pieces with delivery to the whole of the UK. With its high yield of minimum 690MPa it offers better strength than standard carbon steel grades.

What is the effective use of high strength S690 steel in construction?

The high strength S690 steels have an excellent strength-to-self-weight ratio, and they are highly efficient to be used in heavily loaded structures. Typical applications include piles and columns in buildings and supporting members in bridges.

What is the difference between S890QL and S690QL?

S690QL, S890QL, and S960QL are all water quenched and tempered steels that comply with the EN10025:6:2004 specification. These ultra high strength steels have a minimum yield strength of 690 MPa, 890 MPa, and 960 Mpa respectively, making them ideal for use in the haulage sector.

What is the difference between S700MC and S690ql?

The S700MC Steel is basically a structural steel plate developed especially for applications requiring high yield strength. They are used for several load bearing applications. The S690ql is a low alloy structural steel which is high in strength and comes with good weldability.