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What is the difference between S690QL and S690Q?

Oct 28, 2025

What is the equivalent of S690QL steel?
Q690E,ASTM A514, EN 10149-2 Grade S700MC, AS/NZS 3579 Grade 700, AM 700, Bisalloy 80.


What is S690QL material?
S690QL is a high strength quenched and tempered steel grade that complies to steel specification EN 10025. The designation S690QL refers to a minimum yield strength of 690 MPa.

 

What is the difference between S690QL and S690Q?
The main difference is that S690QL has a guaranteed minimum impact energy value at a lower temperature (-40°C) compared to S690Q (-20°C). The "L" in S690QL indicates a lower notch toughness testing temperature. Both are quenched and tempered Q structural steels with a minimum yield strength of 690 MPa, but S690QL is specified for colder-temperature applications.


What is the difference between S690QL and S690Q

 

What is S690ql used for?
The designation S690QL refers to a minimum yield strength of 690 MPa. The combination of good availability and pricing and high strength combined with ease of fabrication has made S690QL steel plate a popular grade for both mobile applications such as cranes and lifting equipment and fixed steel structures.

S690QL steel plate

What is the price of S690ql?

$600 to $1,200 USD per metric ton

 

What is the difference between Weldox 700 and S690QL?
The versatile Weldox 700 shows excellent formability and can be welded following standard welding procedures. With excellent consistency and hardness, the Strenx S690ql grade has enhanced toughness and superior resistance against fracture induced by stress.

 

What is the hardness of S690QL?
S690ql Plates With a Brinell hardness value of 414HBW, the high-strength S690ql steel grade is created.


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