S890Q S890QL S890QL1 HSLA Alloy Steel Plate

S890Q, S890QL, and S890QL1 are European standard (EN 10025-6) High Strength Low Alloy (HSLA) structural steel plates, characterized by a minimum yield strength of 890 MPa, delivered in a Quenched & Tempered (Q) state for high strength and toughness, with 'L' indicating low-temperature impact toughness testing (e.g., -50°C for QL, -60°C for QL1), making them ideal for heavy machinery, bridges, and cranes needing weight reduction while maintaining performance.

Key Characteristics

S: Structural Steel.

890: Minimum yield strength in Megapascals (MPa).

Q: Quenched & Tempered (heat treatment).

L: Specified minimum impact energy at low temperatures (e.g., -50°C).

L1: Even lower specified impact energy (e.g., -60°C).

• Chemical composition % of steel S890Q (1.8940): EN 10025-6-2004

• Mechanical properties of steel S890Q (1.8940)

🔹 S890Q – Standard High-Strength Applications

Best choice when:

Environment temperature ≥ −20°C

Cost control is important

Fabrication conditions are standard

Applications

Crane structures

Heavy machinery frames

Mining equipment

Industrial load-bearing structures

S890QL is a European standard (EN 10025-6) high-strength, quenched, and tempered structural steel known for its exceptional yield strength of at least 890 MPa, making it ideal for heavy-duty applications like cranes, bridges, and transport, where strength-to-weight ratio is crucial, offering good weldability despite its high performance, and performing well in cold conditions.

• Chemical composition % of steel S890QL (1.8983): EN 10025-6-2004

• Mechanical properties of steel S890QL (1.8983)

• Equivalent grades of steel S890QL (1.8983)

Warning! Only for reference

S890QL – Cold Climate & Offshore Projects

Designed for:

−40°C service environments

Higher safety margin

Applications

Offshore platforms

Wind power structures

Marine engineering

Heavy transport equipment

• Chemical composition % of steel S890QL1 (1.8925): EN 10025-6-2004

• Mechanical properties of steel S890QL1 (1.8925)

• Equivalent grades of steel S890QL1 (1.8925)

Warning! Only for reference

S890QL1 – Extreme Low-Temperature Engineering

Used when:

Temperatures reach −60°C

Failure risk must be minimized

Applications

Arctic projects

LNG terminals

Polar offshore structures

Extreme climate infrastructure

Choose S890Q if:

✔ Normal or mild cold climate
✔ Heavy load but controlled environment
✔ Cost efficiency matters

Choose S890QL if:

✔ Cold regions or offshore conditions
✔ Higher safety margin required

Choose S890QL1 if:

✔ Extreme cold environments
✔ High-risk, safety-critical projects

GNEE Steel supplies all three grades with:

EN 10025-6 compliance

EN 10204 3.1 / 3.2 certificates

UT testing & full traceability

Custom cutting, beveling, blasting & priming

Export packaging & global logistics

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📩 Need Help Selecting S890Q / S890QL / S890QL1?

Tell us:

Service temperature

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GNEE Steel's technical team will recommend the most cost-effective and safe solution for your project.

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Q1: What is S890Q steel plate?

A:S890Q is a high-strength structural steel plate according to EN 10025-6, supplied in quenched and tempered (Q) condition, with a minimum yield strength of 890 MPa.

Q2: What is the material number of S890Q?

A:The European material number for S890Q is 1.8940.

Q3: Is S890Q considered non-alloy steel?

A:Yes. Under EN classification, S890Q is listed as non-alloy structural steel, although small alloying elements are added for strength and toughness control.

Q4: What thickness range is available for S890Q steel plate?

A:Common supply thickness ranges from 6 mm to 150 mm, depending on mill capability and standard requirements.

Q5: What are the mechanical properties of S890Q?

A:

Yield strength: ≥ 890 MPa (≤ 50 mm)

Tensile strength: 940–1100 MPa

Elongation: ≥ 11%

Impact test: ≥ 30 J at −20°C

Q6: Can S890Q steel be welded easily?

A:Yes, S890Q has good weldability, but welding must follow controlled procedures, including proper heat input, preheating (if required), and suitable filler materials.

Q7: What is the difference between S890Q and S890QL?

A:S890QL offers better low-temperature impact toughness than S890Q and is typically specified for colder environments or critical structures.

Q8: What are typical applications of S890Q steel plate?

A:S890Q is widely used in:

Cranes and lifting equipment

Bridges and heavy structures

Mining and earthmoving machinery

Wind power and offshore structures

Heavy-duty vehicle frames

Q9: Can S890Q replace S690Q to reduce weight?

A:Yes. Using S890Q instead of S690Q allows significant weight reduction while maintaining or increasing load capacity, which is especially valuable for mobile equipment.

Q10: What inspection and certificates are required for S890Q?

A:Standard supply includes EN 10204 3.1 MTC.

3.2 certificates, ultrasonic testing (UT), and third-party inspection (SGS, BV, TUV) are available upon request.

Q11: Is S890Q suitable for pressure vessel applications?

A:No. S890Q is a structural steel, not designed for pressure vessel or boiler applications. Pressure vessel steels must comply with specific PV standards such as EN 10028 or ASME.

Q12: What delivery condition is required for S890Q steel plate?

A:S890Q must be supplied in quenched and tempered (Q) condition as per EN 10025-6.

Q13: Can you cut or machine S890Q steel plate?

A:Yes. Flame cutting, plasma cutting, and machining are possible with controlled parameters to maintain material properties.

Q14: Does S890Q steel require special storage or handling?

A:Standard dry storage is sufficient. Surface protection can be added for long-term outdoor storage.