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Is S890QL1 suitable for offshore applications?

Jan 16, 2026 Leave a message

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S890QL1 is a high-strength quenched and tempered structural steel plate with a minimum yield strength of 890 MPa, offering excellent toughness, weldability, and fatigue resistance. It is widely used in heavy machinery, large cranes, offshore structures, and high-rise buildings where weight reduction and structural reliability are essential. Produced through controlled thermomechanical rolling followed by quenching and tempering, it achieves a fine-grained microstructure that balances high strength with good ductility. S890QL1 is supplied in normalized or quenched and tempered conditions and complies with international standards, making it a dependable choice for demanding engineering applications.

 

 

 

 

 

 

 

 

S890ql1 steel plate Grade and Specification

Standard ASTM A514/A514M-13
Grade 130 KSI ,140 KSI,A514 ,A710 ,TMCP 100 KSI ,RQT 701 ,S690QL1 ,S690QL ,S690Q ,S890QL1 ,S890QL ,S890Q ,S960QL ,Weldox 700,WELTEN 780E
Size Thickness:12-60mm
Width: 1500-3500mm
Length: 3000-18000mm
Delivery State Quenched and Tempered
Packing Standard seaworthy package
Export To: Saudi arabia, Kuwait, Qatar, Oman, Yemen, UAE, Iran, Turkey, Kazakhstan, Greece, Singapore, Thailand, Indonesia, Vietnam, South Africa,South America,Brazil, India, Australia, Egypt.

 

S890ql1 steel plate Properties

C

Si

Mn

Ni

P

S

Cr

Mo

V

N

Nb

Ti

Cu

Zr

B

max 0.2

max 0.8

max 1.7

max 2

max 0.025

max 0.015

max 1.5

max 0.7

max 0.12

max 0.015

max 0.06

max 0.05

max 0.5

max 0.15

max 0.005

 

Mechanical Properties Of S890ql1 steel plate

Designation

Mechanical Properties (ambient temperature)

Steel Name

Steel Number

Min. Yield Strength Reh MPa

Tensile Strength Rm MPa

Min. % elongation after fracture

Nominal thickness (mm)

Nominal thickness (mm)

≥3 ≤50

≥50 ≤100

≥100 ≤150

≥3 ≤50

≥50 ≤100

≥100 ≤150

S890QL1

1.8925

890

830

––

940/1100

880/1100

––

11

 

Notch Impact Energy

Grade

Sample Orientation

@ 0°C

@-20°C

@-40°C

@-60°C

S890QL1

Longitudinal

60 J

50 J

40 J

30 J

Transverse

40 J

35 J

30 J

27 J

 

 

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S890ql1 steel plate Application Industries

Chhajed steel and alloys offer a broad range of s890ql1 steel plate through a worldwide network of stock-keeping branches.these s890ql1 steel plate is use in various industries like:

Fertilizers Industry

Aerospace Industry

Nuclear Power Plant Industry

Chemical Industry

Oil & Gas Industry

Refineries Industry

Petrochemical Industry

Paper Industry

 

 

 

advantages

Weight Reduction:

Its yield strength is roughly 30% higher than S690QL, enabling engineers to use thinner plates. This reduces the overall weight of a structure by up to 40% compared to conventional steel.

Extreme Low-Temperature Toughness:

Unlike standard "Q" or "QL" grades, the "L1" designation guarantees impact energy resistance at temperatures as low as -60°C, making it safer for polar and high-altitude use.

Cost-Effectiveness:

Although the initial material cost is higher, the "leaner build" reduces foundation requirements, transportation costs, and total welding time, leading to lower overall project expenses.

Predictable Performance:

Modern manufacturing (like Strenx® 900 F) provides tight flatness and thickness tolerances, ensuring precision in automated prefabrication.

 

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Why Choose Us :

You can get the perfect material according to your requirement at the least possible price.

We also offer Reworks, FOB, CFR, CIF, and door to door delivery prices. We suggest you to do deal for shipping which will be quite economical.

The materials we provide are completely verifiable, right from raw material test certificate to the final dimensional statement.(Reports will show on requirement)

We guarantee to give a response within 24hours(usually in the same hour)

You can get stock alternatives, mill deliveries with minimizing manufacturing time.

We are fully dedicated to our customers. If it will not possible to meet your requirements after examining all options, we will not mislead you by making false promises which will create good customer relations.

Contact now

 

Get an valued quotation for s890ql1, Contact GNEE Steel.

 

Which standard does S890QL1 comply with?

S890QL1 complies with the European standard EN 10025-6, which specifies technical requirements for high-strength structural steels for quenched and tempered conditions, ensuring consistent quality and performance.

 

What is the typical tensile strength range of S890QL1?

The typical tensile strength range of S890QL1 is 940-1100 MPa. This range balances strength and ductility, allowing the steel to resist deformation and fracture under high tensile forces.

 

What is the recommended preheating temperature for welding S890QL1?

The recommended preheating temperature for S890QL1 is 100-150°C. This reduces the temperature gradient in the weld zone, preventing the formation of brittle microstructures and improving joint reliability.

 

What are the main chemical components of S890QL1?

Key components of S890QL1 include C (≤0.20%), Mn (≤1.80%), Si (≤0.60%), Cr (≤1.50%), Mo (≤0.60%), and Ni (≤1.00%), which contribute to its high strength and toughness.

 

In which industries is S890QL1 commonly used?

S890QL1 is widely used in construction machinery, mining equipment, offshore structures, and heavy-duty vehicles. Its high strength helps reduce component weight while ensuring structural integrity.

 

Can S890QL1 be heat treated?

Yes, S890QL1 is already quenched and tempered during production. Additional heat treatment like stress relief annealing can be done to reduce residual stresses after welding or forming.

 

What welding processes are suitable for S890QL1?

Suitable welding processes for S890QL1 include MMA, MIG/MAG, and TIG welding. Using low-hydrogen electrodes and maintaining proper heat input are key to achieving high-quality welds.

 

What is the elongation at break of S890QL1?

The minimum elongation at break of S890QL1 is 12% (for 16 mm thickness). This ductility allows slight deformation before fracture, enhancing structural safety under unexpected loads.

 

Can S890QL1 be used in high-temperature environments?

S890QL1 is not ideal for continuous high temperatures above 300°C. High temperatures may reduce its strength and toughness; heat-resistant steels are preferred for such conditions.

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