What is the equivalent of S690QL steel?

S690QL is a high-strength, low-alloy steel with superior corrosion resistance and extraordinary mechanical properties. Although S690QL is one of the most preferred choices, several other equivalent steel grades may perform similarly or even better. This article discusses some of the best S690QL plate equivalents, their properties, benefits, and typical uses.

Warning! Only for reference

S700MC: The grades contain excellent weldability and formability with minimum yield strengths of 700 MPa, making this material an excellent substitute for S690QL in many application contexts.

S890QL: This grade, quenching and tempering grades offer a minimum yield strength of 890 MPa, which makes this an excellent option where a high strength-to-weight ratio needs to be achieved.

S960QL: With a minimum yield strength of 960 MPa, S960QL is classified as an ultra-high-strength steel that can replace S690QL when significantly greater strength is necessary.

Ultra-High Strength: Yield strength ≥690MPa and tensile strength up to 940MPa, allowing the use of thinner plates to achieve lightweight design while maintaining or enhancing structural strength.

Excellent Low-Temperature Toughness: Maintains superior impact toughness at -40℃ or even lower temperatures, ensuring structural reliability in cold regions or low-temperature environments.

Good Weldability and Machinability: Easy to cut, bend and weld with high weld strength, meeting the connection requirements of complex structures.

High Fatigue Resistance: Features a low crack growth rate under dynamic loads, prolonging equipment service life.

Corrosion Resistance: Corrosion resistance can be further enhanced through surface treatment technologies (such as hot-dip galvanizing, anti-corrosion paint spraying), enabling adaptation to harsh environments.

The S690QL equivalents, having properties of high strength and corrosion resistance, along with excellent weldability, relate to broad use in a wide range of applications, including the following:

Offshore and Marine Structures: These are mostly used in producing offshore platforms and vessels, marine structures, and other marine projects that involve harsh conditions.

Heavy Machinery and Equipment: The strength-to-weight ratio is superior, making them highly suitable for producing tremendous machines like cranes, mining machinery, and many more.

Bridges and Infrastructure: The superior strength and resistance to corrosion make these materials highly in use for construction, including bridge construction and other infrastructures.

Automotive and Transportation: High strength and good formability enable manufacturing to produce lightweight, high-performance automotive and transportation components.

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FAQ

What is the difference between S690Q and S690QL?

S690Q: Minimum impact toughness tested at -20°C (30J average). → Typical Use: Cranes in temperate climates, quarry equipment. S690QL: Certified for -40°C and below (≥40J impact toughness). → Critical Use: Arctic pipelines, offshore platforms, mining vehicles in Siberia.

What grade 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 S690 grade steel?

S690 high yield & fine grain steel plate is a high strength, quenched and tempered fine-grain structural steel. Structural steel S690 is used in structures that must withstand very heavy loads. This grade is meant for structures where weight savings is important.

What is the equivalent of S690 steel?

Approximate equivalents
ASTM A514, EN 10149-2 Grade S700MC, AS/NZS 3579 Grade 700, AM 700, Bisalloy 80.

What is the price of S690QL material?

S690QL High Strength Steel Plates, Thickness: 5mm to 150mm at 5,600-13,500 CNY per tonne (approx. 5.6-13.5 CNY per kilogram)/440-900 USD per tonne (approx. 0.44-0.90 USD per kilogram)

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.

What is the yield strength of s690 steel?

690 MPa.

Yield strength of 690 MPa. Used in structures bearing extremely heavy loads, such as bridges, offshore drilling rigs and buildings, as well as in heavy construction equipment and cranes.