S690Q vs S890Q Steel Plate: Which High-Strength Structural Steel Should You Choose?

S690Q and S890Q are both high-strength, quenched & tempered (Q) structural steels under EN 10025-6 standard, with the key difference being their strength level: S690Q has a minimum yield strength of 690 MPa, while S890Q is significantly stronger, with a 890 MPa minimum yield strength, making S890Q suitable for heavier-duty applications needing even greater load-bearing capacity, though both offer excellent toughness and weldability for their respective demands.

What is s890q steel plate ?

S890Q is a general accomplice steel that depending upon thickness guarantees a base yield nature of up to 890 MPa.S890Q meets the necessities of EN 10025 for the disconnecting evaluations. Typical applications are asking for stack bearing structures.This kind of steel which is well in excess of three times the probability of a basic S275 right hand steel is still all around easy to weld and fabricate.S890Q attracts to make weight hypothesis supports or prop higher weights and from this time forward pass on higher payload for lifting and transportation alter.

• Chemical Properties Of s890q steel plate

• Mechanical Properties Of s890q steel plate

S690Q is a hot-rolled hardened structural steel that has undergone subsequent tempering treatment and conforms to the EN 10025-6, DSTU EN 10025-6 standard.

• Standard: Hot-rolled product made from structural steel. EN 10025-6: Technical delivery conditions for high-tensile structural steel post-tempering and quenching.
• Classification: High-grade structural steel.
• Product:Fine-grain steel post-quenching and tempering.

• S690Q Chemical Composition

• S690Q Mechanical Property

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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.