S890QL is a European standard (EN 10025-6) high-strength structural steel known for its exceptional strength (minimum 890 MPa yield strength), toughness, and good weldability, achieved through quenching and tempering.
S890QL 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
Delivery State:Quenched and Tempered
Packing: Standard seaworthy package
S890QL Grade Designation
S = Structural Steel
890 = minimum yield strength (MPa)
Q = Quenching & Tempering
L1= Lower notch toughness testing temperatures to -60ºC
Chemical Composition for S890QL Steel Plate
|
C |
Si |
Mn |
P |
S |
B |
Cr |
Cu |
Mo |
|
0.20 |
0.80 |
1.70 |
0.020 |
0.010 |
|
1.50 |
0.50 |
0.70 |
|
N |
Nb* |
Ni |
Ti* |
V* |
Zr* |
|||
|
0.015 |
0.06 |
2.0 |
0.05 |
|
0.15 |
Mechanical Properties for S890QL Steel Plate
|
Plate Thickness mm |
Yield Strength ReH (MPa) |
Tensile Strength Rm (MPa) |
Elongation A5 % minimum |
Impact Strength J, Minimum |
|
3 to 50 |
890 |
940 - 1100 |
11 |
30 @ -40º C |
|
> 50 to 100 |
830 |
880 - 1100 |
11 |
30 @ -40º C |
S890QL Steel Plate V Notch Impact Testing
|
Grade |
Sample Orientation |
@ 0°C |
@-20°C |
@-40°C |
@-60°C |
|
S890QL |
Longitudinal |
50 J |
40 J |
30 J |
–– |
|
Traverse |
35 J |
30 J |
27 J |
–– |
Types of S890QL Steel Plate:
|
EN 10025 S890QL |
S890QL1 High Strength Plate |
|
High Strength Structural Steel Plate |
|
|
S890QL High Yield Structural Steel |
High Tensile Plates |
|
High Yield Steel Plate |
S890QL Steel Plate |
|
S890QL High Tensile Plates |
High strength fine grain steel plates |
Key Applications
Lifting & Transport: Mobile cranes, loader cranes, truck bodies, trailers, and hydraulic systems, allowing for higher payloads.
Construction: Frameworks for skyscrapers, towers, and large industrial structures.
Infrastructure: Bridges and sea-links that need to support heavy loads.
Heavy Equipment: Buckets for earthmoving, agricultural machinery, and mining equipment.
Offshore & Marine: Offshore cranes and structures requiring high strength and toughness.
Specialized Structures: Aircraft hangars, railway components, and high-strength containers.
Why S890QL is Used
High Strength: Provides a significant strength-to-weight advantage over conventional steels, reducing material usage.
Toughness: Offers good impact resistance, with optional low-temperature impact testing for extreme conditions (e.g., arctic).
Weldability: Relatively easy to weld and fabricate, simplifying production.
Versatility: Meets demanding requirements for both strength and durability in various sectors.
For more details about GNEE's steel products, contact us at beam@gneesteelgroup.com. We look forward to working with you.
How to store S890QL steel plates?
Store them in a dry, well-ventilated area, away from moisture and corrosive substances. Cover with waterproof cloth to prevent rusting.
What machining methods are suitable for S890QL?
It can be machined by turning, milling, drilling, and grinding. Use high-speed steel or carbide tools with appropriate cutting parameters for best results.
What is the tensile strength range of S890QL?
Its tensile strength ranges from 940 MPa to 1100 MPa, making it ideal for structures that need to resist high tensile forces.
Is S890QL resistant to corrosion?
It has moderate atmospheric corrosion resistance. For harsh corrosive environments, additional protection like painting or galvanizing is needed.
Can S890QL be used in offshore structures?
Yes, with proper anti-corrosion treatment, it is suitable for offshore platforms and marine equipment due to its high strength and toughness.
What preheating temperature is needed for welding S890QL?
The preheating temperature is usually 80-150℃, depending on plate thickness. Thicker plates require higher preheating to prevent cracking.
Does S890QL require post-weld heat treatment?
It is recommended for thick sections or high-stress joints. Post-weld tempering relieves residual stress and improves the toughness of the weld zone.
What is the density of S890QL?
The density of S890QL is approximately 7.85 g/cm³, the same as conventional carbon structural steels, facilitating weight calculation in design.
Can S890QL be bent or formed?
Yes, it can be cold or hot formed. Cold forming requires proper tools and parameters, while hot forming at appropriate temperatures enhances formability.
What is the difference between S890QL and S690QL?
S890QL has a higher yield strength (890 MPa vs 690 MPa) than S690QL, suitable for more demanding load-bearing scenarios with stricter strength requirements.