What is S960QL standard?

What is S960QL standard?

The S960QL standard refers to a European high-strength structural steel (EN 10025-6) known for its exceptional minimum yield strength of 960 MPa (megapascals), achieved through quenching and tempering (the 'Q' and 'L' denote quenching/tempering and low-temperature impact toughness, respectively). This steel allows for significant weight reduction in heavy-duty applications like construction machinery, cranes, and mining equipment, offering superior load-bearing capacity, excellent toughness, good weldability, and resistance to abrasion, making it ideal for safety-critical, high-stress structures.

S960QL is a structural steel that guarantees a minimum yield strength of up to 139 ksi depending on thickness. It meets the requirements of EN 10025-6 for the S960QL grade and thicknesses. Typical applications include demanding load-bearing structures.

Grade 960QL is a high strength structural steel in the quenched and tempered condition which gives the material excellent strength and abrasion resistance.
S890QL is a water quenched & tempered steel which complies with the EN10025:6:2004 specification. Due to the nature of the material it is used extensively in the heavy transport, lifting and mining industry, where huge payloads and risk of material deterioration through excessive abrasion is commonplace.
Produced in accordance with EN10025:6:2004, S890QL has good bending and welding capabilities.

S960QL is a ultra-high-strength quenched and tempered steel (EN 10025-6) used in demanding, load-bearing structures where weight saving is critical, such as heavy transport, cranes, bridges, high-rise buildings, and offshore structures, due to its exceptional yield strength (min. 960 MPa), toughness, and wear resistance, enabling lighter designs with superior performance in safety-critical applications.

S960QL Steel Plate Specifications

Steel Standard: EN10025

Thicknesses: 3 mm to 300 mm

Widths: 2000 mm, 2500 mm, 3000 mm

Lengths: Up to 12000 mm long

Standard:Technical delivery conditions for flat products of high yield strength, structural steels in the quenched and tempered condition

Approval By Third Party:ABS, DNV, GL, CCS, LR , RINA, KR, TUV, CE

Classification: Hot rolled products of structural steels

What is S960QL equivalent to?

S960QL is a European standard (EN 10025-6) very high strength structural steel, equivalent to German TStE960V, French E960T/S960T, and sometimes linked to ASTM standards like Q345 (though Q345 is lower strength) or A514, with its strength coming from quenching and tempering, offering excellent weldability and toughness for heavy-duty applications like cranes and mining equipment.

What is S960QL material?

S960QL is a very high-strength structural steel conforming to the European standard EN 10025-6, known for its minimum yield strength of 960 MPa, excellent toughness, and superior abrasion resistance, achieved through a quenching and tempering (Q&T) process, making it ideal for heavy-duty applications like mobile cranes, mining equipment, and heavy transport where weight savings and high load capacity are crucial. The "S" denotes structural steel, "960" its minimum yield strength in MPa, "Q" signifies quenching, and "L" indicates specified impact energy at low temperatures (e.g., -40°C).

What is the hardness of S960QL?

The hardness of S960QL steel is typically around 414 HBW (Brinell Hardness), though it's a high-strength structural steel defined by its yield strength of at least 960 MPa (depending on thickness) and delivered in a quenched and tempered (Q&T) condition, making it strong but requiring careful welding due to cold cracking risks.

Chemical Composition for S960QL Steel Plate

Mechanical properties of steel S960QL (1.8933)

S960QL Steel Plate V Notch Impact Testing

1Is S960QL carbon steel?

Yes, S960QL is a type of high-strength low-alloy (HSLA) carbon steel, specifically a quenched and tempered (Q+T) structural steel known for its exceptional yield strength (960 MPa), making it suitable for heavy-duty engineering applications like cranes, bridges, and mining equipment, balancing high strength with good toughness and weldability.

2What precautions should be taken when welding S960QL?

When welding S960QL high-strength steel, precautions focus on preventing hydrogen cracking and maintaining toughness, requiring thorough cleaning, using low-hydrogen consumables, strict heat input control (low interpass temps < 250°C), preheating (if needed), and slow, controlled cooling post-weld, alongside standard welding safety (PPE, ventilation) for hazardous fumes from primers or coatings.

3What is S960QL standard?

The S960QL standard refers to a European high-strength structural steel (EN 10025-6) known for its exceptional minimum yield strength of 960 MPa (megapascals), achieved through quenching and tempering (the 'Q' and 'L' denote quenching/tempering and low-temperature impact toughness, respectively). This steel allows for significant weight reduction in heavy-duty applications like construction machinery, cranes, and mining equipment, offering superior load-bearing capacity, excellent toughness, good weldability, and resistance to abrasion, making it ideal for safety-critical, high-stress structures.

4What is the yield strength of S960ql?

The material studied in this research is the very-high strength steel S960QL [59]. In quasi-static conditions and at room temperature, the minimum nominal tensile yield strength is 960 N/mm².

5What temperature is S960QL?

S960QL is a high-strength structural steel known for excellent performance at low temperatures, specifically tested for minimum impact energy at -40°C (-40°F), but it also handles moderate to high temperatures, with research studying its properties up to 900°C or more for applications like heavy machinery, though it's processed with high heat (e.g., 1350°C for austenitizing) and quenched for strength. Its "QL" designation confirms it's quenched and tempered for low-temperature toughness.

6What is the P number of S960QL?

The P-number for S960QL steel isn't a simple single digit like P1 or P2; instead, S960QL (a high-strength, quenched & tempered steel) typically falls into P-Group 1 (P1) in ASME Section IX for welding, as it's a low-alloy steel with limited alloying elements, though its high strength and specific composition often require referencing its EN designation (1.8933) and manufacturer data for precise welding procedures, generally grouping it with other low-alloy steels for basic classification.

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