↵As modern engineering projects demand lighter structures, higher load capacity, and longer service life, high-strength structural steel S890Q has become a key material choice across global industries. Defined under EN 10025-6, S890Q combines ultra-high yield strength with reliable toughness, making it ideal for demanding structural applications.
As a professional high-strength steel plate supplier, GNEE Steel provides this comprehensive guide to the characteristics, properties, and analogues of S890Q steel, helping engineers and buyers make informed sourcing decisions.
What Is EN 10025-6 S890Q Steel?
S890Q is a quenched and tempered high yield strength structural steel specified in EN 10025-6.
- S – Structural steel
- 890 – Minimum yield strength of 890 MPa
- Q – Quenched and tempered delivery condition
S890Q steel plate is typically supplied in hot rolled + Q&T condition, offering excellent strength, controlled toughness, and good fabrication performance when correct procedures are applied.
Core Characteristics of Steel S890Q
Steel S890Q is classified as a quenched and tempered high-strength structural steel in line with EN 10025-6 standards, and its core characteristics are closely related to its unique production process and chemical composition:
First, it has excellent high-strength performance. The quenching and tempering process endows S890Q with ultra-high yield strength and tensile strength, which can significantly reduce the weight of structural parts while ensuring load-bearing capacity, making it ideal for lightweight design of heavy machinery.
Second, it possesses good weldability. Unlike some high-strength steels that are difficult to weld, S890Q can be processed by common welding methods (such as arc welding, gas shielded welding) after proper preheating, without obvious welding defects.
Third, it has reliable low-temperature toughness. It maintains stable impact resistance even in low-temperature environments (down to -40℃), which is crucial for applications in cold regions or low-temperature working conditions.
In addition, S890Q has uniform microstructure and stable performance, with small differences in mechanical properties between different batches, ensuring consistency in product manufacturing.
Key Properties of Steel S890Q
EN10025-6 S890Q quenched and tempered steel plate Chemical composition
| Grade | C % | Si % | Mn % | P % | S % | N % | B % | Cr % |
| S890Q | 0.200 | 0.800 | 1.700 | 0.025 | 0.015 | 0.015 | 0.005 | 1.500 |
| Cu % | Mo % | Nb % | Ni % | Ti % | V % | Zr % | ||
| 0.500 | 0.700 | 0.060 | 2.000 | 0.050 | 0.120 | 0.150 |
EN10025-6 S890Q quenched and tempered steel plate mechanical properties
| Grade | Thickness(mm) | Min Yield (Mpa) | Tensile(MPa) | Elongation (%) | Min Impact Energy | |
| S890Q | 8mm-50mm | Min 890Mpa | 940-1100Mpa | 11% | -20 | Min 30J |
| 51mm-100mm | Min 830Mpa | 880-1100Mpa | 11% | -20 | Min 30J | |
| 101mm-150mm | Min 800Mpa | 820-1000Mpa | 11% | -20 | Min 30J |
Welding Considerations
Although S890Q is a high-strength steel, it can be welded safely by:
Using low-hydrogen welding consumables
Applying suitable preheating depending on thickness
Controlling heat input to maintain toughness
Following approved welding procedure specifications (WPS)
GNEE Steel provides technical support to ensure optimal fabrication results.
Analogues and Equivalent Grades of S890Q
There is no exact one-to-one equivalent for S890Q across global standards, but several grades are commonly considered analogues based on mechanical performance.
European Standards
S890QL / S890QL1 – Same yield strength with improved low-temperature toughness
ASTM (USA)
ASTM A514 Grade Q / F – Quenched and tempered structural steel with comparable tensile strength
Chinese Standards
Q890D / Q890E (GB/T 16270) – Closest domestic equivalents with similar yield strength
Other Standards
No direct JIS or ISO equivalent; engineering approval required for substitution
Note: Substitution should always be validated by engineers, considering toughness, chemical composition, and service conditions.
Typical Applications of S890Q Steel
Thanks to its outstanding properties, S890Q steel plate is widely used in:
- Mobile and crawler cranes
- Lifting booms and load-bearing arms
- Heavy construction and mining equipment
- Transport and special vehicles
- Offshore structures and energy projects
- High-stress industrial steel frameworks
For projects focused on weight reduction and high load performance, S890Q is often the preferred solution.
Contact GNEE Steel Today
If you are looking for high-quality S890Q steel plates, or need professional advice on S890Q characteristics, properties, and analogues, GNEE Steel is ready to support your project.
Contact us today for expert consultation, fast quotations, and dependable high-strength steel solutions.
What is S890Q steel plate?
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.
What is the material number of S890Q?
The European material number for S890Q is 1.8940.
Is S890Q considered non-alloy steel?
Yes. Under EN classification, S890Q is listed as non-alloy structural steel, although small alloying elements are added for strength and toughness control.
What is the difference between S890Q and S890QL?
S890QL offers better low-temperature impact toughness than S890Q and is typically specified for colder environments or critical structures.
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GNEE Steel also supplies a variety of high-strength steel plates, such as A514 Grade F, A572 Grade 50, A588 Grade A, S355JR, S690Q, SS400, S690QL, Q345B, Q345E, etc. If you want to know more about other types of steel plates, you can call the consultation hotline at +8615824687445 or send an email to alloy@gneesteelgroup.com. You are welcome to consult us, and we are very willing to answer your questions.
